A body of mass m is moving with a velocity 5 m/s. Its kinetic energy is 25 J. If its velocity is doubled, what is its kinetic energy in KJ ?
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KE = 1/2 mv^2
25=1/2×m× 5^2
m=2kg
KE=1/2 × 2 × 2×5
KE= 10J= 0.01 KJ
25=1/2×m× 5^2
m=2kg
KE=1/2 × 2 × 2×5
KE= 10J= 0.01 KJ
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