Q17 of 146 Page 145

What is the kinetic energy of a body of mass 1 kg moving with a speed of 2 m/s?

Mass of the object, m = 1kg

Velocity of the object, v = 2m/s


Kinetic energy = 1/2(mv2)


= 1/2 × 1 × 2 = 2J


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(d) A ceiling fan in the off position


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