A tennis ball of mass of 0.06 kg is initially traveling at an angle of 47o to the horizontal at a speed of 45 m/s. It then was shot by the tennis player and return horizontally at a speed of 35 m/s. Find the impulse delivered to the ball.

The impulse delivered to the ball is .

Explanation:

By Impulse Theorem, the motion of the tennis ball is modelled after the following expression:

(1)

Where:

- Mass of the ball, in kilograms.

- Vector of the initial velocity, in meters per second.

- Vector of the final velocity, in meters per second.

- Impulse, in meters per second.

If we know that , and , then the impulse delivered to the ball is:

The impulse delivered to the ball is .

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