Question

How does the kinetic energy of a body change if the its movement is double?

Answer 1

If the momentum of an object isdoubled, but its mass does not increase (so velocity remains well below the speed of light), then itsvelocity is doubled. If the velocity isdoubled then the kinetic energyincreases by the square of 2, or four time. Hence kinetic energy of the bodywill be 4 times to its eirlier value.

Answer 2

K.E = P²/2m

K.E = (2P)²/2m

K.E =4P²/2m

SO KINETIC ENERGY BECOMES 4 TIMES ITS ORIGINAL

HOPE IT HELPS

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