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## Answers

KINETIC ENERGY = 1/2 mv²

4 = 1/2 × 2 × v²

4 = v²

v=2 m/s

speed of the object = 2m/s

4 = 1/2 × 2 × v²

4 = v²

v=2 m/s

speed of the object = 2m/s

Here,

m=2 kg

K.E.=4 J

now,

K.E.=4

or =4

or 1/2*2*v^2=4

or v^2=4

or v^2=2 m/s ans.

m=2 kg

K.E.=4 J

now,

K.E.=4

or =4

or 1/2*2*v^2=4

or v^2=4

or v^2=2 m/s ans.