Rotational Motion Question 136

Question: A particle is moving along a line $y=x+a$ with a constant velocity $v$ . Find the angular momentum of the particle about the origin.

Options:

A) $mva$

B) $mva\sqrt{2}$

C) $\frac{mva}{\sqrt{2}}$

D) $\frac{mvy}{x\sqrt{2}}$

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Answer:

Correct Answer: C

Solution:

[c]

$\angle POQ=45{}^\circ So,OQ=a\cos 45{}^\circ =a/\sqrt{2}$

$L=mv(OQ)=mva/\sqrt{2}$



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