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# Quantities Conserved During Slide

APPH12-HNUFZZ

As shown in the diagram above, a small block starts from rest, then slides down a frictionless ramp. It then slides across a frictionless horizontal surface until it collides with a larger block.

What quantity (or quantities) regarding the first block must be conserved as it slides, but before it collides with the second block?

A

Momentum only.

B

Mechanical energy only.

C

Both momentum and mechanical energy.

D

Neither momentum nor mechanical energy.