Question

1. Work done
a) is always positive
b) Is always Negative.
c) Can be positive, Negative or Zero.
d) Can never be Zero.​

Answer 1

Answer:

. Work can be either positive or negative

Answer 2

The answer is option (c)

Reason:

The work done by a body can be negative when the force acts opposite to the direction of displacement. Work done by a force is positive if the applied force has a component in the direction of the displacement. Also, if the force acts perpendicular to the direction of motion, or if the displacement of the object is zero, then work done is zero.

HOPE IT'S HELPFUL : )