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A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻². Its apparent weight will be (g=10 ms⁻²)
Options
(a) 1.0 kg wt
(b) 2.0 kg wt
(c) zero
(d) 0.5 kg wt
Correct Answer:
zero
Explanation:
R = m (g – a) = m (10 – 10) = zero
This answer is an extension of the lift problem. Actually mg is the force acting on the mass m. As potential energy decreases, its kinetic energy increases as experienced. The question is not correct.
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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 the first orbit of the hydrogen atom is a₀. The radius of the second orbit
- A monoatomic gas at a pressure P, having a volume V expands isothermally
- If capillary experiment is performed in vaccum, then a liquid under the condition
- A uniform wire of resistance 9Ω is joined end-to-end to form a circle. Then
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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