Conservation Of Momentum (ht Only) (GCSE Physics)

Two ice skaters initially at rest push off symmetrically and move at ±2.5 m/s. If left skater mass 60 kg, what is right skater mass?

A perfectly elastic collision in one dimension conserves kinetic energy. For masses m and M (M>>m) with m moving, which is true after elastic collision?

A bullet (0.01 kg, 500 m/s) passes through a block of 2 kg and emerges at 100 m/s. What speed does the block recoil at?

A stationary 2.0 kg trolley is hit from behind by a 0.50 kg toy car moving at 3.0 m/s. After the collision the car and trolley stick together. What is their common speed immediately after the collision?

A ball of mass m strikes a fixed wall. If momentum change magnitude is ?p, impulse J = ?p. Which statement about average force Favg if collision time doubles?

A car (mass 1500 kg) traveling at 20 m/s collides and sticks to a truck (mass 3000 kg) at rest. What fraction of initial momentum does the car retain after sticking?

A small mass collides elastically with identical stationary mass in one dimension. Which outcome is correct?

A closed system initially at rest explodes into two fragments of masses 3 kg and 2 kg. If the 3 kg fragment has speed 5 m/s to the right, what is the 2 kg fragment’s speed and direction?

A 3.0 kg object moving at 4.0 m/s collides elastically with a 2.0 kg object at rest. Which statement is true immediately after collision?

In two-dimensional elastic collisions, conservation applies to which quantities?

Impulse J is change in momentum. A net force of 10 N acts for 0.2 s on a mass at rest. What impulse and resulting speed for 5 kg mass?