Magnitude of momentum impulse that the ball gave the wall

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1. A tennis ball of mass m = 0.060 kg and speed v = 25 m/s strikes a wall at a 45-degree angle. It rebounds with the similar speed, once again at a 45-degree angle. What is the magnitude of the momentum impulse (in Ns) that the ball gave the wall?

2. A block of mass 82 g floats on a fluid, oscillating up and down at a frequency of 7.2 Hz. What is the value (in N/m) of the effective spring constant of the fluid?

Reference no: EM13660767

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