Push-Away Problems With Energy Video Lessons

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Problem: Blocks A and B are initially at rest on a horizontal frictionless surface with a spring of negligible mass compressed between them. Block A has mass 5.0 kg and block B has mass 20.0 kg. The spring is released and the blocks move off in opposite directions. After the blocks, have moved away from the spring. A) the magnitude of the momentum of block A is the same as the magnitude of the momentum of block B  B) the magnitude of the momentum of block A is less than the magnitude of the momentum of block B  C) the magnitude of the momentum of block A is greater than the magnitude of the momentum of block B

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Problem Details

Blocks A and B are initially at rest on a horizontal frictionless surface with a spring of negligible mass compressed between them. Block A has mass 5.0 kg and block B has mass 20.0 kg. The spring is released and the blocks move off in opposite directions. After the blocks, have moved away from the spring.

A) the magnitude of the momentum of block A is the same as the magnitude of the momentum of block B 

B) the magnitude of the momentum of block A is less than the magnitude of the momentum of block B 

C) the magnitude of the momentum of block A is greater than the magnitude of the momentum of block B

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