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

Question

Assertion: Work done by the friction or viscous force on a moving body is 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 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

Tardigrade Admin · Accepted Answer

Work done is a scalar quantity. It can be positive or negative unlike mass and kinetic energy which are positive scalar quantities.

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

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

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

If assertion is true but reason is false

If both assertion and reason are false

Work done is a scalar quantity. It can be positive or negative unlike mass and kinetic energy which are positive scalar quantities.

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