Question: A superball with mass m equal to 70 grams is dropped from a height of hi = 1.9 m. It collides with a table, then

A superball with mass m equal to 70 grams is dropped from a height of hi = 1.9 m. It collides with a table, then bounces up to a height of hf = 1.2 m. The duration of the collision (the time during which the superball is in contact with the table) is tc = 17 ms. In this problem, take the positive y direction to be upward, and use g = 10.8 m/s2 for the magnitude of the acceleration due to gravity. Neglect air resistance.

Part A: Find the y component of the momentum of the ball immediately before the collision.

Part B: Find the y component of the momentum of the ball immediately after the collision, that is, just as it is leaving the table.

Part C: Find the y component of the impulse imparted to the ball during the collision.

Part D: Find the y component of the time-averaged force Favg, in newtons, that the table exerts on the ball.

Part E: Find Kafter-Kbefore, the change in the kinetic energy of the ball during the collision, in joules.

Before During After hi he

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