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3.A 20 g lead bullet (initially at 200◦C) is fired at 500 m/s into a 200...

3.A 20 g lead bullet (initially at 200◦C) is fired at 500 m/s into a 200 g block of aluminum (initially at 25◦C) which is sitting just in front of the bottom of a 20◦ incline. The bullet is stuck into the block upon hitting it, and the block then slides 18 m up the incline before friction brings the block to rest.

A)How fast is the block moving just after bullet hits it?

B)What is the temperature of the fused bullet/block when it comes to a stop?

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