Physics

# If the fundamental units of length, mass and time are halved, the unit of momentum will be:

halved

##### SOLUTION

$Momentum=m\times v=MLT^{-1}$

$\displaystyle M^{1}=\frac{M}{2}, \ L^{1}=\frac{1}{2}, \ T^{1}=\frac{T}{2}$

$\Rightarrow \displaystyle \frac{\frac{M}{2}\times \frac{L}{2}}{\frac{T}{2}}=\frac{MLT^{-1}}{2}$

$\displaystyle \Rightarrow \frac{MLT^{-1}}{2}=\frac{momentum}{2}$

Hence, option B is correct.

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Single Correct Medium Published on 18th 08, 2020
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