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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
- B is doped in Si or Ge, then we will get
- A particle under the action of a constant force moves from rest upto 20 seconds
- A planet in a distinct solar system is 10 times more massive than the earth
- 6Ω and 12Ω resistors are connected in parallel. This combination is connected
- A ray of light is incident at an angle of incidence i, on one face of a prism
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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