Changes In Momentum (physics Only) (GCSE Physics)

A bus of mass 12 000 kg and a car of mass 1200 kg are moving at the same speed. Which has greater momentum?

A 0.8 kg ball is moving right at 10 m/s and strikes a wall, reversing to left at 6 m/s. If contact time is 0.04 s, what average force acted on the ball (magnitude)?

Which statement about impulse is correct?

A ball bounces off a wall; contact time with wall is shortened. How does this affect the peak force on the ball (assuming same change in speed)?

Two ice skaters push off each other. Before push both at rest; after push one skater of mass 50 kg moves at 1.2 m/s. What is the velocity of the other skater of mass 75 kg? (Conserve momentum)

A ball of mass 0.40 kg moving right at 10 m/s collides elastically with a stationary ball of mass 0.40 kg. After collision what is speed of the first ball?

Which equation correctly links force (F), time (?t) and change in momentum (?p)?

A lorry of mass 2000 kg slows from 20 m/s to 5 m/s in 10 s. What is the change in momentum of the lorry?

A figure shows a car stopping with seatbelt vs without. Which explanation correctly describes why the seatbelt reduces injury?

A 0.20 kg ball hits a paddle and stops in 0.02 s. The average force on the ball is 150 N opposite to motion. What was the ball’s speed immediately before impact?

A cyclist of mass 70 kg moving at 5.0 m/s is brought to rest by an average braking force of 350 N. How long did the braking take?