Q6) The kinetic energy of an object of mass, m moving with a velocity of 10 m/s is 50 J. What will be its
kinetic energy when its velocity is doubled?
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answer1:the same as the first one
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KE = 1/2×m×v
50 = 1/2×m×10
50=5m
m=10
KE = 1/2×10×20
KE = 5×20=100J
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