Changes In Momentum (physics Only) (GCSE Physics)

A cyclist collides with a lamppost and comes to rest. Which quantity best measures the severity of the collision for the cyclist?

A 5.0 kg object accelerates from 2.0 m/s to 12.0 m/s in 4.0 s. What average force acted on it?

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?

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?

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)

Which scenario shows momentum is a vector quantity?

A car and a stationary truck collide and stick together (perfectly inelastic). Which of the following is always true for the system (car + truck) during the collision (neglect external forces)?

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

During an explosion a stationary shell of mass 10 kg breaks into two fragments of 3 kg and 7 kg which fly apart with velocities +8 m/s and v m/s respectively. What is v?

If a car of mass 1200 kg traveling at 15 m/s is brought to rest by a constant braking force of 18 000 N, how long does braking take?

A 2.0 kg object moving at 3.0 m/s collides with and sticks to a 3.0 kg object at rest. What is their common speed immediately after collision?