A block of mass 1.00 kg sits on an inclined plane as shown . A force of magnitude 90.0 N is pulling the block up the incline. The coefficient of kinetic friction between the plane and the block is 0.500 . The inclined plane makes an angle 50.0 degrees with the horizontal.
A ) what is the total work friction on the block by the force of friction as the block moves a distance 10.0 m up the incline?
B ) what is the total work f done on the block by the applied force as the block moves a distance 10.0 m up the incline?
Part B :
now the applied force is changed so that instead of pulling the block up the incline, the force pulls the block down the incline.
C ) what is the total work friction on the block by the force of friction as the block moves a distance 10.0 m down the incline?
D ) what is the total work f done on the box by the applied force 90.0 N in this case ?