Question
A force acting on an object does NO work if:
a
the object accelerates
b
the force is greater than the force of friction
c
the force is not in the direction of the object's motion
d
a machine is used to move the object
a
the object accelerates
b
the force is greater than the force of friction
c
the force is not in the direction of the object's motion
d
a machine is used to move the object
Answers
Bot
c) the force is not in the direction of the object's motion. In order for work to be done on an object by a force, the force must be in the same direction as the object's displacement.