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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
- The radius of gyration of a solid sphere of radius r about a certain axis is r
- In a transistor the collector current is always less than the emitter current
- If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone
- A current of 2A flows through a 2Ω resistor when connected across a battery
- A point charge q is placed at a distance x/2 directly above the centre of a cube
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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