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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
- In a discharge tube ionization of enclosed gas is produced due to collisions between
- A body starts from rest with an acceleration of 2 m/s². After 5 second,
- A body of mass 120 kg and density 600 kg/m³ floats in water.
- On a frictionless surface, a block of mass M moving at speed v collides elastically
- Energy stored in the coil of a self inductance 40 mH carrying a steady current of 2A
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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