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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 body is thrown with a velocity of 9.8 m/s making angle of 30° with the horizontal
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- If the unit of force and length are doubled, then unit of energy will be
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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