Work Q2) Which of the following statements about the work done by a force is incorrect Work - Science - Work and Energy

Question

Work
Q2)
Which of the following statements about the work done by a force
is incorrect?

Work is done by a force only if a body moves towards the
direction of the applied force

Work done by a body is equal to the amount of energy gained or
spent by the body

Work done by a force can be zero even if the body moves to a
certain distance

Work done by a force can be positive as well as negative

Ans :
Work done by a force is defined as the product of the force on a
body and the displacement of the body along the line of action of
the force Therefore, it is not necessary that the body
always moves towards the direction of the applied force Even if a
body moves opposite to the direction of the applied force, work is
done by the applied force This is because the
displacement of the body is along the line of action of the applied
force In this case, the work done by the force is considered
negative
The correct answer is A
Dear Experts, I can't understand this How can it be not
necessary that an objectalways moves towards the direction of the
applied force?
If the above is correct, then please coin an example

Aditi · Accepted Answer

Yes, it is not necessary that Work is done by a force only if a
body moves towards the direction of the applied force
If we apply force in one direction and body will move opposite to
that , its direction will be opposite to force applied As in case
of the upward motion of the ball, gravitation force is acting
downward So workdone will be negative here