Conservation Of Momentum (ht Only) (GCSE Physics)

A car of mass 1200 kg and speed 20 m/s hits a stationary truck of mass 2400 kg and they lock together. What is their speed after impact?

A 4.0 kg ball moving at 2.0 m/s collides head-on elastically with a 2.0 kg ball moving at -1.0 m/s (opposite direction). What is the velocity of the 4.0 kg ball after the collision?

A bullet of mass 0.010 kg strikes and embeds in a block of mass 2.0 kg at rest. Bullet speed was 400 m/s. What momentum does the block+bullet have immediately after impact?

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?

Two ice skaters push off each other. Skater A of mass 50 kg moves at 1.2 m/s and Skater B moves the opposite way at 0.80 m/s. What is the ratio of their momenta magnitudes pA:pB?

Two-dimensional collision: particle A (1 kg) with velocity (3 i + 0 j) m/s collides with B (2 kg) at rest. After collision A has velocity (1 i + 2 j) m/s. What is B’s velocity?

An isolated system has total momentum zero. Two identical masses are moving directly towards each other. If one has speed 6 m/s, what is the other’s speed?

A system of two particles has external force zero. Over a collision, which is conserved?

A ball bouncing elastically off a wall reverses its velocity from 6 m/s to -6 m/s in 0.02 s. What average force acted on a 0.3 kg ball?

Two particles collide in 2D. The total momentum before collision is (6.0 i + 2.0 j) kg·m/s. After collision the x-component of momentum is 4.0 kg·m/s. What must be the y-component after the collision for momentum to be conserved?

A system of two gliders on frictionless track: mass 2 kg at 1 m/s collides elastically with 3 kg at rest. After collision, 2 kg is at -0.2 m/s. What is speed of 3 kg?