In a good hit, a baseball and bat are in contact with each other for about 1 millisecond. In the first game of the 2012 World Series, Tigers pitcher Justin Verlander threw a 100-mph pitch to the Giants' Pablo Sandoval. Sandoval's hit returned the ball directly back at Verlander at 70 mph. Calculate the average force of the bat on the ball, during the contact. Round the final answer to the nearest whole number.

Answers

Answer 1

Answer:

Explanation:

100 mph = 100 x 1760 x 3 / ( 60 x 60 )

= 146.67 ft / s

70 mph = 70 x 1760 x 3 / ( 60 x 60 )

= 102.67 ft/s

Let mass of the ball = m .

The ball which was moving with a velocity of 146.67 ft/s is turned back by the action of force of bat on the ball and it moved in opposite direction with velocity of - 102.67 ft/s ( - ve sign due to reversed direction )

If m be the mass of ball

change in momentum = m x 146.67 - ( - m x 102.67 )

=  m x 146.67 +  m x 102.67

= 249.34 m

Change in momentum = impulse = force x time

Putting the given values

249.34 m = force x 1 x 10⁻³ ( time = 10⁻³ s )

force = 249.34 m x 10³ poundal .

Here m is mass of the ball in lb .


Related Questions

A toy car is allowed to roll down a ramp during an experiment. While it is on the ramp, gravity acts on the car as an unbalanced force. Which of the following graphs best illustrates the car’s velocity as a function of time while it is on the ramp?

Answers

Answer:

When an unbalanced force acts on an object, the motion of the object is changed. If the object is at rest, the force makes it move. If the object is in motion, the force changes its velocity. Any change in velocity is acceleration

Explanation:

jayfeather friend me

True or False Heat is the measure of the flow of thermal energy. *
True
False

Answers

Answer:

True

Explanation:

Answer:

that is very much true im pretty sure

(edit I was wrong its false)

An object is placed 1.0 cm from a convex mirror with a focal length of 4.0 cm.

Answers

Answer:

image distanc=-0.8cm

Explanation:

.8 is the answer, sorry I do not have the proof.
But the other guy DOES NOT know how to write.

Two charges separated by one meter exert a 9 N force on each other. If the charges are pushed to a 3 meter separation, the force on each charge will be 3 N.
True or False?

Answers

Answer:

False

Explanation:

The formula of force that exists between two charges is expressed as;

F = kq1q2/r²

If two charges separated by one meter exert a 9 N force on each other, the;

9 = kq1q2/1²

9 = kq1q2 ..... 1

If the charges are pushed to a 3 meter separation, then;

F =  kq1q2/3²

F =  kq1q2/9 .... 2

Divide both equations;

9/F = (kq1q2)/ kq1q2/9

9/F =  kq1q2 * 9/ kq1q2

9/F = 9

F = 9/9

F = 1N

Hence if the charges are pushed to a 3 meter separation, then the force on EACH charge will be 1N. Hence the answer is False

1)Describe the difference between an
energy transfer and energy store.
2)Give 3 examples of an energy transfer.
3)Give 3 examples of an energy store.

Answers

Answer:

1) Energy transfer is the movement of energy from one location to another. ... Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy.

2)A swinging pirate ship ride at a theme park. Kinetic energy is transferred into gravitational potential energy.

A boat being accelerated by the force of the engine. ...

Bringing water to the boil in an electric kettle.

3)Common examples of energy storage are the rechargeable battery, which stores chemical energy readily convertible to electricity to operate a mobile phone, the hydroelectric dam, which stores energy in a reservoir as gravitational potential energy, and ice storage tanks, which store ice frozen by cheaper energy at night 

Explanation:

PLEASE MARK ME AS BRAINLIEST

A 136 kg defensive lineman is about to tackle a 100 kg quarterback. Right before
impact, the lineman is moving north at 6.0 m/s and the quarterback is moving
north at 1.0 m/s. Determine the speed and direction of the two players
immediately after the tackle.

Answers

Answer:

3.88 m/s North

Explanation:

We are given that

[tex]m_1=136kg[/tex]

[tex]m_2=100 kg[/tex]

[tex]v_1=6 m/s[/tex]

[tex]v_2=1m/s[/tex]

We have to find  the speed and direction of the two players

immediately after the tackle.

Using linear conservation of momentum

[tex]m_1v_1+m_2v_2=(m_1+m_2)v[/tex]

Substitute the values

[tex]136\times 6+100\times 1=(136+100)v[/tex]

[tex]916=236v[/tex]

[tex]v=\frac{916}{236}[/tex]

[tex]v=3.88m/s[/tex]

Direction of  the two players  immediately after the tackle is North.

Free fall acceleration
I need help?!!

Answers

Explanation:

if g is 10ms^-1

answers are

1-10

2-20

3-30

4-40

5-50ms^-1

Force (N) = 250
Mass (kg) = 221
Acceleration (m/s^2) = ?

Answers

Answer:

The required acceleration is [tex]a=1.1[/tex] m/s²

Explanation:

Given

Force F = 250 NMass m = 221 kg

To determine

Acceleration a = ?

We know that acceleration is produced when a force is applied to a body.

The acceleration can be determined using the formula

[tex]F = ma[/tex]

where

F is the force m is the mass a is the acceleration

now substituting F = 250 , and m = 221 in the formula

[tex]F = ma[/tex]

[tex]250 = 221 (a)[/tex]

switch the equation

[tex]221(a) = 250[/tex]

Divide both sides by 221

[tex]\frac{221a}{221}=\frac{250}{221}[/tex]

simplify

[tex]a=\frac{250}{221}[/tex]

[tex]a=1.1[/tex] m/s²

Therefore, the required acceleration is [tex]a=1.1[/tex] m/s²

prove that total mechanical energy is always constant​

Answers

Explanation:

We know that the overall mechanical energy of a device stabilizes in the absence of any external force. We know that that the total of potential and kinetic of the freely velocity vector remains same. ,So mechanical energy of a body, underneath gravitation, remains constant.

Astronomers classify galaxies by their shape. Which of the following terms describes a galaxy that looks like a round or flattened ball and contains little gas and dust between the stars?
A.
elliptical galaxy
B.
irregular galaxy
C.
No galaxies are shaped like a ball
D.
spiral galaxy

Answers

A. Elliptical galaxy

How are deceleration and acceleration related?

Answers

Answer:

Deceleration is reverse of acceleration

I'll mark brainiest if you help me

Answers

question 4 is true, question 5 is B.

Gravitational potential energy is due to....
a. mass and height above the ground
b. the amount of power an object has
c. the speed of an object
d. how far an object is stretched

Answers

Answer:

A

Explanation:

I only think its A because of the gravity part...sorry im not good at explaining

A young man exerted a force of 9,000 N on a stalled car but was unable to move it. How much work was done?

Answers

W=F*s
W=9000*0
W=0
W:Work
F:Force
s:Distance

A roller coaster of mass 2000 kg is rolling down a track with an
instantaneous speed 10 m/s. What is its kinetic energy in Joules?

Answers

Answer: 100k Joules

Explanation:

How do simple
machines magnify
forces?

Answers

Answer:

Motion at one end of the beam results in motion at the other end in the opposite direction.

Explanation:

The location of the fulcrum can magnify (or reduce) the force applied at one end at the expense (or advantage) of the distance over which the other end travels. Sorry if I get this wrong! I am in 5th grade. ♥

Please help with these questions!!!!!

Answers

Answer:

4.c

5.d

6.c

Explanation:

9. A 12 v battery is connected to four 5 ohm light bulbs. What is the equivalent
resistance for the bulbs in series? In parallel?

10. What would be the current through each light of problem 9?
For parallel circuit?
For series circuit?

-no bs answers

Answers

20 ohms 5 ohms
12volts

does this man look okay? hes all pink and stuff O_O hes teaching me frickin science

Answers

Answer:

He is pink panther. How nerdy does he sound?

Explanation:

A 1.5 kg block moves at 4 m/s

Answers

Answer:

12 joules

Explanation:

I'm assuming you're looking for kinetic energy?? Kinetic energy is 1/2 mv^2. 4 squared is 16, 16 times 1.5 = 24. 24/2 = 12.

how many electrons does a neutral atom of the element iron (fe) have?

Answers

Answer:

26 electrons

A neutral iron atom contains 26 protons and 30 neutrons plus 26 electrons in four different shells around the nucleus. As with other transition metals, a variable number of electrons from iron's two outermost shells are available to combine with other elements

Explanation:

hope this helps have a good rest of your night :) ❤

Kelly Clarkson is running between the Patronas towers in Kuala Lumpur on a tightrope at a speed of 15 m/s. Kelly currently weighs 79 kg. What is her KE?

Answers

KE = 8887.5 J

Further explanation

Given

speed = 15 m/s

weight = 79 kg

Required

KE-Kinetic energy

Solution

Energy is the ability to do work  

Energy because its motion is expressed as Kinetic energy (KE) which can be formulated as:  

[tex]\large {\boxed {\bold {KE = \frac {1} {2} mv ^ 2}}}[/tex]

Input the value :

KE = 1/2 x 79 kg x 15² m/s²

KE = 8887.5 J

Answer:

KE = 8887.5 J

all energy,potential kinetic within a specific system

a)joule

b) total energy

c) potential energy

Answers

Answer:

C

Explanation:

The potential and kinetic energy within a specific system is called the total energy of the system.

Option B is the correct answer.

Potential and Kinetic Energy

The energy of the specific system due to its steady position is defined as the potential energy of the system.

The energy of the system which is stored due to the motion of the system is called the kinetic energy of the system.

The mechanical energy of the system is the total energy within the system including its kinetic and potential energy.

The sum of kinetic and potential energy is known as mechanical energy. An object's mechanical energy is defined as the total energy which is stored during its steady position and stored during the motion of the object.

Hence we can conclude that option B represents the correct answer for the given statement.

To know more about the potential and kinetic energy, follow the link given below.

https://brainly.com/question/21288807.

Insert the values
A train is traveling at a speed of 100km/hr for 3 hours. It then speeds up to 2 poin
150km/hr for the next 2 hours. How far has the train gone at the end of 5hours

Answers

Answer:

300km

Explanation:

To find the total distance traveled within the given time frame, we need to known that distance is the product speed and time;

  Distance  = Speed x time

For the first lap:

   Distance  = 100km/hr x 3hr = 300km

 

For the second lap;

     Distance  = 150km/hr x 2  = 300km

Distance  = 300km + 300km

So;

Distance = 300km

The electric force between two charged balloons is 0.12 newtons. If the distance between the two balloons is halved, what will be the new force?
A.
0.03 newtons
B.
0.06 newtons
C.
0.36 newtons
D.
0.48 newtons

Answers

Answer:

d. 0.48

Explanation:

why malleability is a useful property

Answers

Malleability is a useful property because it allows many products to be made in manufacturing.

Substances which naturally attract each other called what

Answers

Answer:

Ferromagnetism, physical phenomenon in which certain electrically uncharged materials strongly attract others. Two materials found in nature, lodestone (or magnetite, an oxide of iron, Fe3O4) and iron, have the ability to acquire such attractive powers, and they are often called natural ferromagnets.

Hope this help :)

CO + 7H2 - C3Hg + 3H20

Answers

Answer:

Espanol 7h2 that's c coupon

what are food sorces of iron​

Answers

Answer:

liver (but avoid this during pregnancy)

red meat.

beans, such as red kidney beans, edamame beans and chickpeas.

nuts.

dried fruit – such as dried apricots.

fortified breakfast cereals.

soy bean flour.

Explanation:

A tennis ball covers a distance of 12 meters in 0.4 seconds what is the velocity of the tennis ball?

Answers

V=d/t
V=12/0.4
V=30 m/s

Answer:

30m/s

Explanation:

Given parameters:

Distance  = 12m

Time taken  = 0.4s

Unknown:

Velocity of the tennis ball = ?

Solution:

Velocity of a body is the displacement per unit of time.

  Velocity  = [tex]\frac{displacement}{time}[/tex]  

So;

      Velocity  = [tex]\frac{12}{0.4}[/tex]   = 30m/s

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