Home
Class 11
PHYSICS
Assertion: Work done by the friction or ...

Assertion: Work done by the friction or viscous force on a moving body in negative.
Reason: Work done is a scalar quantity which cannot be negative like mass.

A

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

B

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

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Work done is a scalar quantity. It can be positive or negative unlike mass and kinetic energy which are positive scalar quantities
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY AND POWER

    NCERT FINGERTIPS|Exercise NCERT Exemplar|18 Videos

  • WAVES

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Work done by frictional force

Work done by a frictional force is

Work done by the force of friction

Work Done by Friction

The work done by kinetic friction on a body :

Work done by force of static friction .

Assertion: Work done by the force of friction in moving a body around a closed loop is zero. Reason: Work done does not depend upon the nature of force.

Assertion : Work done by friction on a body sliding down an inclined plane is positive. Reason : Work done is greater than zero, if angle between force and displacement is acute or both are in same direction.