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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
Related Questions: - The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
- Shear modulus is zero for
- A heavy stone hanging from a massless string of length 15 m is projected
- Two bodies of masses m₁ and m₂ and having velocities v₁ and v₂ respectively
- Light emitted during the de excitation of electron from n=3 to n=2, when incident
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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