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Physics - Center of Mass Question with Solution | TestHub

PhysicsCenter of MassMomentum conservationMedium2 min

PhysicsMediumsingle choice

Two balls of mass m and 2m are connected by a light inextensible string. String is initially slack. Heavier ball is given velocity $v_{0}$ towards right. Find impulse by string on ball of mass m when string becomes tight :-

Options:

Answer:

Solution:

by momentum conservation

$2 mv_{0} = 3 mv, v = \frac{2 v _{0}}{3}$

Impulse an ball of mass m

$= p_{f} - p_{i} = mv - 0 = \frac{2 mv _{0}}{3}$

Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Momentum conservation

⏱ 2m

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