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38. [No content provided for this question.]

39. When you jump off a table, you bend your knees to reduce the impact force and increase the collision time.

40. When a home run is hit in baseball, it typically has a relatively long collision time. What effect will this have on the final velocity of the ball?

41. To have a bunt hit in baseball, you want to keep the ball within the infield. Besides reducing the force applied, do you want to increase or decrease the collision time with the bat?

42. Karate chop-type hits in martial arts are designed to impart maximum force. Should the punch be delivered with a long or short collision time, assuming the mass and the velocity of the punch are fixed?

43. Airbags in cars are designed to make which of these variables larger in the equation [tex]mv = Ft[/tex], in order to reduce the force of impact on the car passengers?

44. Long-barreled guns shoot further and faster than short-barreled guns. Which term does the gun barrel directly increase in the equation [tex]mv = Ft[/tex]?

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Final answer:

Increasing collision time can reduce force in collisions. In baseball, longer collision times result in higher final velocities. Different scenarios in sports and safety measures highlight the impact of collision duration on force and outcomes.


Explanation:

Increasing the collision time during a collision can reduce the force experienced. In baseball, a homerun with a longer collision time will result in a higher final velocity due to the increased amount of time for the force to act on the ball.

For a bunt hit in baseball, besides reducing the force, you want to increase the collision time with the bat to keep the ball within the infield.

In martial arts, for maximum force in a punch, you should deliver it with a short collision time, assuming fixed mass and velocity. Airbags in cars aim to increase the collision time to reduce the force felt by car passengers. Long barreled guns increase the momentum to shoot further and faster.


Learn more about Collisions in Physics here:

https://brainly.com/question/38756808


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