The kinetic energy of a body of mass 3 kg

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The kinetic energy of a body of mass $3 \,kg$ and momentum $2 \,N-s$ is

A

$1 \,J$

B

$\frac{2}{3}J$

C

$\frac{3}{2}J$

D

$4 \,J$

The kinetic energy of a body of mass $3 \,kg$ and momentum $2 \,N-s$ is

$E = \frac{{{P^2}}}{{2m}} = \frac{4}{{2 \times 3}} = \frac{2}{3}J$

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