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Impulse and Momentum (finding net force) 
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#1
Nov806, 02:09 AM

P: 1

A 0.500kg ball is dropped from rest at a point 1.20 m above the floor. The ball reboundes straight upward to a height of 0.700 m. What are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor?
I have been trying to solve this various ways, I have tried using PE and KE, but I keep on coming up with 3.1305 instead of the 4.28 which I should be getting. Any guidance would be greatly appreciated. 


#2
Nov806, 03:13 AM

Sci Advisor
HW Helper
P: 6,671

Can you determine these speeds from the two heights given? AM 


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