Question

A body P of mass ‘m’ is moving with a velocity ’v’. Another body Q of mass m/2 is moving with a
velocity’2v’. Which of the body is likely to have more kinetic energy? Support your answer by proper
calculations.

Answer 1

For body p.

K.E=1/2mv^2

For body Q

K.E=1/2×m/2×(2v)^2

=m/4×4v^2

=mv^2

so for body Q K.E is double than P.

Answer 2

Answer:

K.E of Q is Double than P