Physics GRE GR 1777

2. Classical Mechanics (Momentum and Energy)

Solution)

By the linear momentum conservation,

1) x-direction :

2) y-direction :

Therefore,

Also, using work-energy theorem,

If we assume that all energy generated by collision is converted to heat, then the heat energy produced by the collision is

The answer is (E)

# GRE GR 1777, Problem 002 Solution

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