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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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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A coin of mass m and radius r having moment of inertia I about the axis passes
- Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A
- A car of mass m is moving on a level circular track of radius R
- A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists
- Number of electrons in one mC charge, given e=1.6×10⁻¹⁹ C, will be
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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