Question

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A moving body of mass 2 kg has 81
joules of kinetic energy. Calculate
its velocity​

Answer 1

Answer:

The velocity of the mass is= 9 m/s

Explanation:

Kinetic energy= 1/2 mv^2

=> 81 J = 1/2 x 2 kg x v^2

=> 81 m^2 s^(-2) = v^2

=> v= 9 m/s