Question

If the force applied on the body displaces it in the opposite direction of applied force, then the work done is
(a) Positive
(b) Negative
c) Zero
(a) Data is inadequate​

Answer 1

$\huge{\bold{\red{\star{\pink{Heya !}}}}}$

Option[B] Negative is the answer.

Answer 2

If the force applied to the body and displacement of the body is in the opposite direction, then the work done is:

(b) Negative

• Consider a man lifting a bucket out of a well by means of a rope tied to the bucket.

• In this case, the work done by the gravitational force is negative as the body is lifted upwards and gravitational force acts downwards.

• Similarly, work done by friction on a body sliding down an inclined plane is also negative.