From the law of conservation of linear momentum, the total momentum before the collision is equal to the total momentum after the collision.

Momentum:

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

**Part A**

The momentum of asteroid A:

P_{A} = (500)(20) = 10000 kg•m/s

Two asteroids drifting at constant velocity collide. The masses and velocities of the asteroids before collision are indicated on the figure

**Part A** Sketch graphs of the momenta of asteroids A and B before the collision.

**Part B** During the collision, is the magnitude of the force of asteroid A *greater than, less than or equal to* asterold B?

**Part C** Sketch a graph of the total momentum in the system of the two asteroids after the collision.

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What scientific concept do you need to know in order to solve this problem?

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