Apunter drops a 2.0 kg ball from rest vertically 1 meter down onto his foot. the ball leaves the foot with a speed of 18 m/s at an angle 55º above the horizontal. what is the impulse delivered by the foot (magnitude and direction)? ans: 43.6 kg*m/s @ 61.7° above the horizontal

Explanation:

Given

mass of drop

height of fall

ball leaves the foot with a speed of 18 m/s at an angle of

Velocity of ball just before the collision with the floor

Impulse delivered in Y direction

Impulse in x direction

at an angle of

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

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