The kinetic energy of an object of mass m moving with velocity of 15m/s is 50 J . What will be its kinetic energy when its velocity is increased 3 times ?
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kinetic energy = 1/2 mv²
when velocity. is 3 times ,that means 15 x 3= 75 m/s
1/2 x m x 75x75
1/2 x m x 5625
= 2812.5 J
when velocity. is 3 times ,that means 15 x 3= 75 m/s
1/2 x m x 75x75
1/2 x m x 5625
= 2812.5 J
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