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Category > Physics Posted 20 Apr 2017 My Price 5.00

Atennis ball moving

26. Atennis ball moving at 13 fll'lS strikes the 45°hatchback ofa carmoving away at 12 mfs. Both speed fl given with respect to the ground. The ball rebound elastically from the car. Assime that the car is
much more massive than the ball, which is reasonable. Ctfimocf a) Determine the speed of the ball relative to the car before the bounce- m
b) If the ball bounces elastically, how fast and in what direction 0—“
will it be moving with respect to the car after the bounce? c) What is the velocity of the ball with respect to the ground after the bounce? 1Whecre did the lost
kinetic energy of the ball go? d) Explain why in this problem it was safe to assume that the speed of the car is not noticeably
afiocmd by the ball striking it.

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SuperTutor
(15)
Status NEW Posted 20 Apr 2017 03:04 AM My Price 5.00

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