The momentum of a body is numerically equal to its kinetic energy. The velocity of the particle is

1 m s^{- 1}

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4 m s^{- 1}

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8 m s^{- 1}

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2 m s^{- 1}

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Solution

The correct option is D $2 m s^{- 1}$
$K = \frac{1}{2} m v^{2}$
$P = m v$
$\Rightarrow \frac{1}{2} m v^{2} = m v$
$\Rightarrow v = 2 m / s$
Hence,
option $D$ is correct answer.

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The momentum of a body is numerically equal to its kinetic energy. The velocity of the particle is

The correct option is D 2 ms−1K=12mv2P=mv⇒12mv2=mv⇒v=2m/sHence,option D is correct answer.

The correct option is D $2 m s^{- 1}$
$K = \frac{1}{2} m v^{2}$
$P = m v$
$\Rightarrow \frac{1}{2} m v^{2} = m v$
$\Rightarrow v = 2 m / s$
Hence,
option $D$ is correct answer.