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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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(103)
Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A battery of e.m.f. E and internal resistance r is connected to an external resistance
- The masses of three wires of copper are in the ratio 1:3:5 and lengths
- The ultimate individual unit of magnetism in any magnet is called
- A body starts from rest with an acceleration of 2 m/s². After 5 second,
- The kinetic energy needed to project a body of mass m from the surface of earth
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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