Which of the following statements correctly defines quantitatively the work done by a force? the product of the force and the distance moved
-
A.
parallel to the line of action of the force from a reference point -
B.
perpendicular to the line of action of the force from a reference point -
C.
on a line through the reference point -
D.
by the object
Correct Answer: Option A
Explanation
The quantity of work done (or energy converted) by a force, when the force moves, depends on two obvious factors:
– the distance moved (in the direction along which the force acts) and
– the magnitude (strength) of the force