A force acting on an object does NO work if:
a
the force is greater than the force of friction
b
a machine is used to move the object
c
the object accelerates
d
the force is not in the direction of the object's motion
a
the force is greater than the force of friction
b
a machine is used to move the object
c
the object accelerates
d
the force is not in the direction of the object's motion