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November 20, 2014

Homework Help: physics

Posted by glenmore on Sunday, December 4, 2011 at 7:07pm.

A rubber ball (mass 0.21 kg) is dropped from a height of 1.7 m onto the floor. Just after bouncing from the floor, the ball has a speed of 3.6 m/s.

(a) What is the magnitude and direction of the impulse imparted by the floor to the ball?
Magnitude?
Direction?

(b) If the average force of the floor on the ball is 19 N, how long is the ball in contact with the floor?

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