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## Homework Statement

A tennis ball of mass m = 0.087 kg and speed v = 43 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45° (Fig. 7-29). What is the impulse given the wall?

## Homework Equations

Impulse = M x V

Sin (theta) = opp/hyp

## The Attempt at a Solution

Impulse = .087(43) = 3.741 (at 45 degrees)

Sin(45) = x / 3.741

x = 3.1832 Is the impulse given the wall. Is this corect?