How to Calculate Impulse and Average Force in a Baseball Bat Collision

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In summary, the conversation is about solving a physics problem involving a baseball being hit by a bat and determining the magnitude of the impulse and average force exerted. The correct answers are found using the equations P=m(vf-vi) and F=delta p/delta t. There was a mistake in the calculation of the first part, but it has been corrected.
  • #1
Vanessa23
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[SOLVED] baseballs and impulses

Homework Statement



A 0.137-kg baseball traveling horizontaly is hit by a bat and its direction is exactly reversed. Its velocity changes from +21.9 m/s to -21.9 m/s. What is the magnitude of the impulse delivered by the bat to the ball (enter first). If the baseball is in contact with the bat for 1.45 ms, what is the average force exerted by the bat on the ball?

Homework Equations



P=m(vf-vi) and F=delta p/delta t

The Attempt at a Solution



p=.137(.0219-(-.0219))
p=.0060006 Part1 answer

F=.0060006/.00145s
F=4.14

However, the program we submit our answers to says that one or both of my answers is wrong. Please help!
 
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  • #2
Vanessa23 said:
p=.137(.0219-(-.0219))
p=.0060006 Part1 answer
You changed 21.9 to 0.0219!
 
  • #3
wow. I guess I got a little carried away converting units. Thanks!
 

What is a baseball's impulse?

A baseball's impulse is the product of its mass and velocity, or in other words, the change in momentum over time. This concept is important in understanding how a baseball moves and interacts with other objects.

How does the impulse of a baseball affect its trajectory?

The impulse of a baseball can affect its trajectory by changing its velocity and direction. When a baseball is hit or thrown with a greater impulse, it will travel farther and faster than if it were hit with a lower impulse.

What factors can affect the impulse of a baseball?

The impulse of a baseball can be affected by factors such as the mass of the ball, the force applied to it, and the duration of the force. Other external factors, such as air resistance and spin, can also affect the impulse of a baseball.

How does the impulse of a baseball relate to other sports?

The concept of impulse is not unique to baseball and can be seen in other sports as well. In sports like football and hockey, the impulse of the ball or puck can determine the distance and speed of the object. In sports like golf and tennis, the impulse of the club or racket can affect the trajectory of the ball.

How is the impulse of a baseball measured?

The impulse of a baseball can be measured using equations and principles from physics, such as Newton's second law of motion and the law of conservation of momentum. It can also be measured using specialized equipment, such as a radar gun or a high-speed camera.

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