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+1 vote
46.7k views
in Mathematics by (30 points)
edited by

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

it is a numerical

1 Answer

+1 vote
by (9.4k points)
 
Best answer

We know that 

K.E = 1/2 m v2

We'll replace K.E i.e kinectic enerygy by 1 J and mass (m) by 1 kg (given in the question)

1 = 1/2 * 1 * v2

2 = v(take 2 to the other side)

v = √2

v = 1.414 m/s

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