Question

A body of 20kg is moving with velocity 3m/s collides with a wall and returns back with same velocity impulse on the body will be

Answer 1

Answer:

Impulse is 120kg m/s

Explanation:

• Mass of body = 20 kg
• Velocity before collision = 3m/s
• Velocity after collision = (-3m/s)

=> Impulse = change in momentum

= (20*3) - (20*-3)

= 120 kgm/s