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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
- If R is the radius of the earth and g is the acceleration due to gravity
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
- The amplitude of S.H.M. y=2 (sin 5πt+√2 cos 5πt) is
- What is the dimension of impedance?
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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