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Physics - Rotation Question with Solution | TestHub

PhysicsRotationAngular momentumMedium2 minPYQ_2022

PhysicsMediumsingle choice

Consider a body shown in the figure, consisting of two identical balls, each of mass $M$ connected by a light right rod. If an impulse $J = M V$ ( $V =$ linear velocity of ball)is imparted to the body at one of its ends, what would be its angular velocity?

Options:

Answer:

Solution:

Impulse $J = Δ P$ $\Rightarrow M V = 2 M v^{'} - 0 \Rightarrow v^{'} = \frac{V}{2}$ The rod will rotate about its COM. Thus, $v^{'} = ω R = ω (\frac{L}{2})$ $\Rightarrow ω = \frac{2 v ^{'}}{L} = \frac{V}{L}$

Stream:MHT_CETSubject:PhysicsTopic:RotationSubtopic:Angular momentum

⏱ 2mℹ️ Source: PYQ_2022

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