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A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocit...


Question

A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocity of 50ms-1. If it rebounced with a horizontal velocity of 30ms-1, Calculate the impulse of the ball on the ball · ·

Options

A) 3.0Ns

B) 4.5Ns

C) 7.5Ns

D) 12.0Ns


The correct answer is B.

Explanation:

Impulse = m(v-u)

= 0.15(80-50)

= 4.5N/s


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