Momentum and Impulse

Momentum and Impulse

Multiple Choice

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.
Calculate the impulse on the ball.

• 1 N.s
• 6 N.s
• 66 N.s 
• None of these

Multiple Choice

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

• 0.1 kg-m/s

• 1 kg-m/s

• 10 kg-m/s

• 100 kg-m/s

Multiple Select

The units for Impulse are

• kg

• $N\cdot s$

• N

• m/s

• $kg\cdot\frac{m}{s}$

Multiple Choice

A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball.

• 55 kg*m/s

• 100 kg*m/s

• 250 kg*m/s

• 500 kg*m/s

Multiple Choice

How can a tennis ball and a bowling ball have the same momentum?

• have the same speed
• have different speeds
• one is moving backwards
• they can't

Multiple Choice

A 5 N force is applied to a 3 kg ball to slow it down from 9 m/s to 3 m/s. What is the impulse on the ball?

• -2.5 N⋅s

• -10 N⋅s

• -18 N⋅s

• -45 N⋅s

Multiple Choice

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

• 25 m/s
• 375 m/s
• 25 kg m/s
• 375 kg m/s

Multiple Choice

A 2 kg cart has a momentum of 16 kg.m/s. What is its velocity?

• 8 m/s

• 32 m/s

• 40 m/s

• 60 m/s