Question

JEE MAINS SOLVE THE ATTACHED QUESTION ❓​

Answer 1

Answer :-

c) +ve, -ve, -ve, +ve.

Step-by-step explanation :-

(a) It is positive since the force and displacement are in the same direction, force is applied by the man, displacement by the rope and the work done is on the bucket.

(b) It is negative since displacement is acting vertically up and the force is acting vertically down and they are opposite to each other.

(c) It is negative since we know that the direction of friction is opposite to the direction of motion, positive times negative is negative.

(d) It is positive since the body is moving on a rough surface, so the frictional force opposed the motion of the body, to be in uniform velocity, uniform force shall act on the body so the applied force gets in the direction of motion of body, so it is positive.