Physics Help Please!!!!?

medi

New member
A block of mass 1.00 \rm kg sits on an inclined plane as shown. A force of magnitude 80.0 \rm N is pulling the block up the incline at constant speed. The coefficient of kinetic friction between the plane and the block is 0.500. The inclined plane makes an angle 60.0 degrees with the horizontal.

Part A
What is the total work W_fric done on the block by the force of friction as the block moves a distance 6.00 \rm m up the incline?
Express the work done by friction numerically, in Joules.

Part B
What is the total work W_F done on the block by the applied force F_vector as the block moves a distance 6.00 m up the incline?
Express your answer numerically, in Joules.


Now the applied force is changed so that instead of pulling the block up the incline, the force pulls the block down the incline at a constant speed.
Part C
What is the total work W_friction done on the block by the force of friction as the block moves a distance 6.00 m down the incline?
Express your answer numerically, in Joules.

Part D
What is the total work W_F done on the box by the applied force 80.0 N in this case?
Express your answer numerically, in Joules.
 
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