A force acting on an object does no work if
a machine is used to move the object.
the force is not in the direction of the object’s motion.
the force is greater than the friction of motion.
the object accelerates
jawaban
If the force is not in the direction of the object’s motion then a force acting on an object does no work
work is done if force is applied on a body and body covers some distance in the direction of the force
W=FS
