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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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- A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Volume of gas becomes four times if temperature becomes
- A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- A particle moves along a circle of radius 20/π m with constant tangential acceleration
- A body is thrown upward from ground covers equal distances
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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