Calculate the change that should be affected in the velocity of a body to maintain the same kinetic energy, if the mass of the body is increased to four times.

KE= 1/2MV2
NOW IF MASS IS INCREASED 4 TIMES 
KE= 4 * 1/2MV2
NOW AS KE REMAINS THE SAME
KE=KE
​         (OR)
1/2MV2 = 4*1/2 MV2

V2= V2/ 4
V=V/2
THEREFORE VELOCITY BECOMES HALF

 

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