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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 respective speeds of the molecules are 1,2,3,4 and 5 km/s.
- A tuning fork gives 4 beats with 50 cm length of a sonometer
- A car wheel is rotated to uniform angular acceleration about its axis
- A tuning fork A produces 4 beats per second with another tuning fork B of frequency
- The decay constant of a radio isotope is λ. If A₁ and A₂ are its activities at time
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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