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If rope of lift breaks suddenly, the tension exerted by the surface of the lift (a = Acceleration of lift) is
Options
(a) mg
(b) m(g+a)
(c) zero
(d) m(g-a)
Correct Answer:
zero
Explanation:
If the rope suddenly breaks, acceleration = g
So substituting in formula, tension T=m(g−a)=0
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- Two bodies of masses m and 4 m are moving with equal K.E. The ratio of their linear
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Given A=4i+6j and B=2i+3j. Which of the following is correct?
- Two bodies of masses m and 4 m are moving with equal K.E. The ratio of their linear
- At the first minimum adjacent to the central maximum of a single-slit diffraction
- From a disc of radius R, a concentric circular portion of radius r is cut-out so
- A proton is moving in a uniform magnetic field B in a circular path of radius a
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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