Push-Away Problems With Energy Video Lessons

Example

# Problem: 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.Part AWhat is the momentum  of piece A before the explosion?Express your answer numerically in kilogram meters per second.Part BDuring the explosion, is the force of piece A on piece B greater than, less than, or equal to the force of piece on piece A?Part CThe momentum of piece B is measured to be 500 kg•m/s after the explosion. Find the momentum of piece A after the explosion.Enter your answer numerically in kilogram meters per second.

###### FREE Expert Solution

Momentum,

$\overline{){\mathbf{P}}{\mathbf{=}}{\mathbf{m}}{\mathbf{v}}}$

Part A

vA,i = 0

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###### Problem Details

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.

Part A

What is the momentum  of piece A before the explosion?

Part B

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

Part C

The momentum of piece B is measured to be 500 kg•m/s after the explosion. Find the momentum of piece A after the explosion.