Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassMotion of centre of massMedium3 minQB
PhysicsMediummultiple choice
Consider a two-block system with a man on one of the blocks. Initially the system of blocks and man was moving with speed 1 m/s on a smooth surface. Suddenly the man jumps horizontally forward. Mark the correct statement(s).
Options:(select one or more)
Answer:
A, C
Solution:
No external horizontal force acts on the complete system.
The jump converts internal chemical energy into mechanical energy. Hence A is correct and B is false.
After separation, the blocks and spring have no external horizontal force.
Thus C is correct. The entire system’s centre of mass moves at its initial speed, so D is false.
Answer: A, C.
Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Motion of centre of mass
⏱ 3mℹ️ Source: QB
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