Part A Item 5 What is the work Wf done on the block by the force of friction as the block moves a distance L up the incline? A block of weight w sits on a plane inclined at an angle θ as shown. (Figure 1) The coefficient of kinetic friction between the plane and the block is μ Express your answer in terms of some or all of the following: u, θ, L. Hints Figure 1 of 1 Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Part B What is the work W done by the applied force of magnitude F? Express your answer in terms of some or all of the following: L. W-