Physics - Rotation Question with Solution | TestHub
PhysicsRotationMiscellaneousMedium3 minQB
PhysicsMediummultiple choice
A man weighing W stands on a horizontal beam (hinged on a wall) of negligible weight at point C and holds a massless rope passing over two smooth pulleys. The rope is attached to point B on the beam as shown. If the system is in equilibrium, then :-
Options:(select one or more)
Answer:
A, B, D
Solution:
Let rope tension be T. Taking moments about A: 2m·T+4m·T=4m·W, so T=2W/3.
For W=600 N, T=400 N.
Vertical equilibrium gives hinge force H+2T-W=0, hence H=-W/3.
Therefore its magnitude is 200 N and it acts downward.
Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 3mℹ️ Source: QB
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