Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassMotion of centre of massMedium2 minQB
PhysicsMediumsingle choice
A projectile is launched from the origin with speed v at an angle from the horizontal. At the highest point in the trajectory, the projectile breaks into two pieces, A and B, of masses m and 2m, respectively. Immediately after the breakup piece A is at rest relative to the ground. Neglect air resistance. Which of the following sentences most accurately describes what happens next?
Options:
Answer:
B
Solution:
The breakup force is internal, so total vertical momentum stays zero right after the burst. Piece A is at rest, so piece B also has zero vertical velocity. Both then fall from the same height with the same initial vertical velocity (zero) and land together.
Ans. (B)
Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Motion of centre of mass
⏱ 2mℹ️ Source: QB
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