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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
Related Questions: - The particle executing simple harmonic motion has a kinetic energy K₀cos²ωt.
- A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The particle executing simple harmonic motion has a kinetic energy K₀cos²ωt.
- A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency
- The magnetic susceptibility is negative for
- A cockroach is moving with a velocity v in anticlockwise direction on the rim
- A block of wood weighs 10 N and is resting on an inclined plane. The coefficient
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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