A monkey sits on the pan of a spring scale. The reading of the spring scale will be maximum when the elevator is kept in an elevator
Correct answer: B. accelerate downward
- A. is stationary
- B. accelerate downward
- C. Cable brakes and it falls freely towards the earth
- D. accelerates upward
Explanation
The reading of the spring scale will be maximum when the elevator accelerates downwards. This is because the apparent weight of the monkey is the sum of its actual weight and the force due to the acceleration, and the apparent weight is maximum when the elevator accelerates downward
Last updated
About Weightlessness and Artificial Gravity
Weightlessness means the apparent weight or supporting force on an object is zero, as in free fall or an orbiting spacecraft, not that gravity has disappeared. Artificial gravity is produced by centripetal acceleration, usually through rotation. Questions compare gravitational force, normal reaction, orbital motion and the sensation of weight.
Practise Gravitation
265 free Gravitation MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 9 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A 100kg man is standing in an elevator, which accidentally falls freely. What will be the weight of the person in the freely falling elevator (take g=10 m/s^2)
A body of mass m is attached to a spring balance which is attached to the ceiling of an elevator. If the elevator moves up with a certain acceleration, the apparent weight of the body will be
A man of weight \( w \) is standing on an elevator which is ascending with an acceleration \( a \). The apparent weight of the man is
An object in a satellite orbiting around the Earth is weightless because:
An object in a satellite orbiting around the earth is weightless because: