To catch a fast-moving ball, you extend your hand forward before contact with the ball and let it ride backward in the direction of the ball's motion. Doing this reduces the force of contact on your hand principally because the

A) force of contact is reduced.
B) relative velocity is less.
C) time of contact is increased.
D) time of contact is decreased.
E) none of the above


Answer: C

Physics & Space Science

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Fill in the blank(s) with correct word

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A fully charged parallel-plate capacitor remains connected to a battery while you slide a dielectric between the plates. What happens to the value of ?V?

1.It increases. 2.It decreases. 3.It stays the same.

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A golf ball traveling 3 m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

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Relative to its average speed in air, the average speed of a beam of light in glass is

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