Find the velocity of a body of mass 200g having kinetic energy of 20 joules
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K.E=1/2 mv²
20 J=1/2×(200/1000)×v²
20=v²/10
v²=200⇒v=√200=10√2 m/s=14.14 m/s(Ans.)
20 J=1/2×(200/1000)×v²
20=v²/10
v²=200⇒v=√200=10√2 m/s=14.14 m/s(Ans.)
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