Question

A moving body of mass 0.3 kg has 60J of KE .calculate the speed of the body.​

Answer 1

Answer:

20 m/s

Explanation:

Kinetic Energy = 1/2 × m × v^2

Mass = 0.3 = 3/10

60 = 1/2 × 3/10 × v^2

60 = 3/20 × v^2

v^2 = 60 × 20/3

v^2 = 400

v = 20 m/s

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