Momentum & Impulse in 2D Video Lessons

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Problem: A ball of mass 0.150 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.960 m. What impulse was given to the ball by the floor?

FREE Expert Solution

This problem requires us to use the equation for impulse, which is:

I=Ft=mvf-mvi

We will also use the kinematic equation:

vfy2=v0y2+2ay, where a is the acceleration of the ball and y is the displacement of the ball. 

Just before impact, we can use our kinematic equation to determine the velocity of the ball as:

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Problem Details

A ball of mass 0.150 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.960 m. What impulse was given to the ball by the floor?

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