The kinetic energy of a moving body is given by $K = 2 v^{2}$ , $K$ being in joules and $v$ in m/s. Its momentum when traveling with a velocity of $2 m s^{- 1}$ will be :

Question

The kinetic energy of a moving body is given by K - 2v-2- K being in joules and v in m-s- Its momentum when traveling with a velocity of 2 ms-1- will be -8 kg m s-1-16 kg m s-1-2 kg m s-1-4 kg m s-1-

Toppr Admin · Accepted Answer

K-12mv2-2v2-x21D2-m-4kg-x2192-p-m-x2192-v-xA0- -xA0- -4-xD7-2-xA0- -xA0- -8-xA0-kgm-s

The kinetic energy of a moving body is given by $K = 2 v^{2}$ , $K$ being in joules and $v$ in m/s. Its momentum when traveling with a velocity of $2 m s^{- 1}$ will be :
$8 k g m s^{- 1}$
$16 k g m s^{- 1}$
$2 k g m s^{- 1}$
$4 k g m s^{- 1}$

$K = \frac{1}{2} m v^{2} = 2 v^{2}$
$\Rightarrow m = 4 k g$
$\to p = m . \to v$
$= 4 \times 2$
$= 8 k g m / s$

The kinetic energy of a moving body is given by K=2v2, K being in joules and v in m/s. Its momentum when traveling with a velocity of 2 ms−1 will be :8 kgms−116 kgms−12 kgms−14 kgms−1

K=12mv2=2v2⇒m=4kg→p=m.→v =4×2 =8 kgm/s

The kinetic energy of a moving body is given by $K = 2 v^{2}$ , $K$ being in joules and $v$ in m/s. Its momentum when traveling with a velocity of $2 m s^{- 1}$ will be :
$8 k g m s^{- 1}$
$16 k g m s^{- 1}$
$2 k g m s^{- 1}$
$4 k g m s^{- 1}$

$K = \frac{1}{2} m v^{2} = 2 v^{2}$
$\Rightarrow m = 4 k g$
$\to p = m . \to v$
$= 4 \times 2$
$= 8 k g m / s$