Question

At what speed a body of mass 1 kg will have a kinetic energy of 1J ?​

Answer 1

Answer:

Your answer is 2 meter per second.

Explanation:

Formula for finding speed is as follow :

   2 X K.E / m = V

   2 X 1 / 1  = V

   V = 2 meter per second

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Answer 2

Explanation:

KE=1/2mv^2

m=1kg

KE=1J

V=?

1=1/2 1*v^2

2=V^2

V=√2