Momentum in an Explosion

A giant “egg” explodes as part of a fireworks display. The egg is at rest before the explosion, and after the explosion, it breaks into two pieces, with the masses indicated in the diagram, traveling in opposite directions.

A) What is the momentum PA,i of piece A before the explosion?

=> PA,i = 0 kg*m/s

B) During the explosion, is the force of piece A on piece B greater than, less than, or equal to the force of piece B on piece A?

=> equal to

C) The momentum of piece B is measured to be 500 kg*m/s after the explosion. Find the momentum PA,f of piece A after the explosion.

=> PA,i = -500 kg*m/s

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