Answer to Question #52296 in Other Physics for john

Question #52296
1. Two carts, one twice the mass of the other, experience the same force for the
same time. What is their difference in momentum? What is their difference in
kinetic energy?
2. A 12 g bullet is fired horizontally into a 96 g wooden block initially at rest on a
horizontal surface. After impact, the block slides 7.5 m before coming to rest. If
the coefficient of kinetic friction between block and surface is 0.60, what was
the speed of the bullet immediately before impact?
3. A ball bounces upward from the ground with a speed of 14 m/s and hits a wall
with a speed of 12 m/s. How high above the ground does the ball hit the wall?
Ignore air resistance.
Expert's answer
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