Conservation of Momentum problems

Last updated over 3 years ago

5 questions

Required

Two bumper cars are driven toward each other. The initial momentum of bumper car 1 is 250 kgm/s
and the initial momentum of bumper car 2 is -320 kgm/s. After the cars collide, the final momentum of bumper car 1 is -311 kgm/s.
What is the final momentum of bumper car 2?

Answer: _______  Units _______ 

Required

A red wagon with a mass of 5kg is moving with a velocity of 4m/s straight toward a blue wagon at rest. The red wagon’s mass is 5 times the mass of the blue wagon. The final velocity of the red wagon is 3 m/s.
What is the velocity of the blue wagon immediately after the red wagon collides with it?
Answer: _______  Units: _______ 

Required

Two model cars collide and then move together. Car 1 has a mass of 2 kg and has an initial velocity of -5m/s. Car 2 has a mass of 1.0kg and an initial velocity of 4m/s immediately before the two model cars have a perfectly inelastic collision.
What is their final velocity immediately after the collision?
Answer: _______  Units: _______ 

Required

Two giant bouncy balls are thrown at each other. The mass of bouncy ball 1 is 110kg and the mass of bouncy ball 2 is 170kg. bouncy ball 1 has a velocity of 1.5m/s and bouncy ball 2 has a velocity of -2m/s. The final velocity of bouncy ball 1 is -2.75m/s.
What is the velocity of bouncy ball 2 immediately after the collision?

Answer: _______  Units: _______ 

Required

Two pieces of clay collide and stick together moving in one dimension. Clay 1 has a mass of 2.1kg and clay 2 has a mass of 2.5kg. Clay 1 has an initial velocity of 20m/s and clay 2 has an initial velocity of -10m/s before they have a perfectly inelastic collision.
What is the final velocity of the two pieces of clay immediately after the collision?
Answer: _______  Units: _______   Round to ONE decimal places!  ex: 4.6