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Physics - Center of Mass Question with Solution | TestHub

PhysicsCenter of MassCollisionMedium2 minQB

PhysicsMediumsingle choice

A ball, moving with a speed of 9 m/s, strikes an identical stationary ball such that after the collision, the direction of each ball makes an angle of 30° with the original line of motion. The speeds of the two balls after the collision are, respectively,

Options:

Answer:

Solution:

Identical balls, symmetric 30° scatter: speeds equal, and momentum along the initial line gives

$9 = 2 v^{'} cos 3 0^{\circ} = v^{'} 3 \Rightarrow v^{'} = 33 m/s$

Ans. (D)

Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Collision

⏱ 2mℹ️ Source: QB

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