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
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