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The ratio of the weight of a man in a stationary lift and when it is moving downwards with uniform acceleration a is 3:2,then the value of a is
Options
(a) 3/2 g
(b) g/3
(c) g
(d) 2/3g
Correct Answer:
g/3
Explanation:
Weight when stationary = mg
Weight when moving downwards = m(g-a)
3/2 = mg/m(g-a)
3g – 3a = 2g
⇒ a = g/3
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A flywheel rotating about a fixed axis has a kinetic energy of 360 J when
- If the temperature of the sun were to increase from T to 2T and its radius from R and 2R
- The acceleration due to gravity near the surface of a planet of radius R and density d
- A condenser has a capacity 2 μF and is charged to a voltage of 50 V. The energy
- An object moving with a speed of 6.25 m/s, is deaccelerated at a rate given by
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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