College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 50

A boy catches-with bare hands and his arms rigidly extended-a 0.16-kg baseball coming directly toward him at a speed of 25 m/s. He emits an audible "Ouch!" because the ball stings his hands. He learns quickly to move his hands with the ball as he catches it. If the contact time of the collision is increased from 3.5 ms to 8.5 ms in this way, how do the magnitudes of the average impulse forces compare