November 27, 2015

Homework Help: physics

Posted by Frankie on Monday, October 4, 2010 at 2:20pm.

A rubber ball (mass 0.30 kg) is dropped from a height of 1.2 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?

so to find v1=square root of 2gh
V1*m +V2*m=2.5

WHERE did the square root of 2gh come from?

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