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Potential Energy of an Object at a Height

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Question

Read the assertion and reason carefully to mark the correct option out of the options given below :
Assertion : An astronaut in a satellite feels weightlessness.
Reason : As observed by another astronauts in the same satellite, force of gravity and centrifugal force balance each other.

A

If both assertion and reason are true and the
reason is the correct explanation of the assertion

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B

If both assertion and reason are true but reason
is not the correct explanation of the assertion

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C

If assertion is true but reason is false

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D

If assertion is false but reason is true

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Solution

The correct option is A If both assertion and reason are true and the
reason is the correct explanation of the assertion
In a satellite, weightlessness is felt.
The weight of a person in a satellite is balanced by the centrifugal force due to orbiting of the satellite around the earth, i.e.,
$m g = \frac{m v^{2}}{r}$

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