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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: - For a parallel beam of monochromatic light of wavelength λ diffraction is produced
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- A fluid is in streamline flow across a horizontal pipe of variable area of cross section
- The electric field associated with an e.m. wave in vacuum is given by
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a parallel beam of monochromatic light of wavelength λ diffraction is produced
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- A fluid is in streamline flow across a horizontal pipe of variable area of cross section
- The electric field associated with an e.m. wave in vacuum is given by
- Ohm’s law valid
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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