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A 30 g steel ball bounces elastically on a steel plate, always returning to the same maximum height h = 14.2 m.
a) What is the magnitude of the total momentum the ball transfers to the plate at each bounce?
b) What is the time interval between bounces?
c) Averaged over a long time interval, what is the magnitude of the rate at which momentum is transferred to the plate?
d) What is the magnitude of the average force exerted by the ball on the plate?
e) What is the weight of the ball?
A train car with mass m1 = 527 kg is moving to the right with a speed of v1 = 8 m/s and collides with a second train car, What is the mass of the second train car
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