Question

A 140 g tennis ball travelling 30° east of north at 15 m/s is struck by a tennis racquet, giving it a velocity of 25 m/s, west. What are the magnitude and direction of the impulse given to the ball? Include a labelled diagram.

Answer 1

Answer:

The magnitude of the impulse is 1.4 Ns in the West direction.

Explanation:

The impulse equation is given by:

$\Delta p=m\Delta v$

Where:

• m is the mass of the ball
• Δv is the difference in velocity

So we will have:

$\Delta p=0.140(25-15)$

$\Delta p=1.4\: Ns$

Therefore, the magnitude of the impulse is 1.4 Ns in the West direction.

I hope it helps you!