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Linear Momentum

A stationary ...

Question

A stationary particle explodes into two particles of masses x and y which move in opposite directions with velocity v1 and v2. The ratio of their kinetic energy is

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Solution

m1v1=m2v2 (p1=p2)
E1÷E2=((1÷2)×m1×v1^2))÷((1÷2)×m2×v2^2)
=(p1^2÷(2×m1))÷(p2^2÷(2×m2))
by cancelling we get
=m2÷m1

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