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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 source of sound S emitting waves of frequency 100 Hz and an observer
- Consider two nuclei of the same radioactive nuclide. One of the nuclei was created
- α-particles, deuterons and protons of same energy are moving in a perpendicular
- Application of Bernoulli’s theorem can be seen in
- A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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