might need help just setting up a diagram, with the angles, i believe i n need that.
Then i can use the equation W = (F*cos theta) * s
where s is the distance.
thanks for any help with this one.
heres the problem:
A 44 kg box is being pushed a distance of 7.0 m across the floor by a force whose magnitude is 157 N.
And the force is parallel to the displacement of the box.
The coefficient of kinetic friction is 0.25.
I must use the proper + and - signs for the work by each force of:
applied force: in Joules
frictional force: in Joules
normal force: in Joules
gravity: in Joules
also, since i have different Joules for each force, the equation should change, so what variable would be the changing variable in the equation?
thanks alot for any extra help for this one.