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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
- 34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
- Three particles A,B and C are thrown from the top of a tower with the same speed.
- The sun light reaches us as white and not as its components because
- Two capacitors having capacitances C₁ and C₂ are charged with 120V and 200V batteries
- The acceleration due to gravity becomes (g/2) where g=acceleration due to gravity
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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