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Assertion : The work done in bringing a ...

Assertion : The work done in bringing a body down from the top to the base along a frictionless inclined plane is the same as the work done in bringing it down along the vertical side .
Reason : The gravitational force on the body along the inclined plane is the same as that along the vertical side.

A

If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion

B

If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion

C

If Assertion is ture but the Reason is false

D

If both, Assertion and Reason are false

Text Solution

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The correct Answer is:
c
Work done is same because gravitational forces are conservative forces Gravitational force on the body along the inclined plane is not same as that along the vertical The reason is false .
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These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following five reponses (a) If both Assertion and Reason arecorrect and Reason is the correct explanation of Asserrtion. (b) If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion. (c ) If Assertion is true but Reason is false. (d) If Assertion is false but Reason is true. Assertion The work done in bringing a body down from the top to the base along a frictionless inclined plane is the same as the work done in bringing it down from the vertical side. Reason The gravitational force on the body along the inclined plane is the same as that along the vertical side.

Statement-1 : The work done in bringing a body down from the top to the base along a frictionless incline plane is the same as the work done in brining it down from the vertical side. STATEMENT-2 : Work is defined as intvec(F) . dvec(r )

What is the work done against gravity when a body is moved horizontally along a frictionless surface ?

Find an expression for the work done against friction when a body is made to slide down an inclined plane?

Derive an expression for the work done when a body slides down a rough inclined plane.

Starting from rest a body slides down a 45^(@) inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The coefficient of the body and the inclined plane is :

The work done in sliding a wooden box of mass 5 kg along a friction less inclined plane of inclination 30^(@) and length 10 m is ______J. (g=10 m s^(-2))

Calculate the amount of work done in moving a body up a rough inclined plane .

Assertion : Work done by the frictional force is negaive Reason : This is because frictional force acts along the dirction of motion

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