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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
- When two displacements represented by y₁=a sin(?t) are superimposed the motion is
- In refraction, light waves are bent on passing from one medium to the second medium
- When the rate of flow of charge through a metallic conductor
- What is the value of incidence L for which the current is maximum in a series LCR
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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