Question

A block of weight w = 30.0 N sits on a frictionless inclined plane, which makes...

A block of weight w = 30.0 N sits on a frictionless inclined plane, which makes an angle θ = 35.0 ∘ with respect to the horizontal, as shown in the figure. (Figure 1) A force of magnitude F = 17.2 N , applied parallel to the incline, is just sufficient to pull the block up the plane at constant speed. PLEASE PUT ALL ANSWERS IN JOULES

Part A

The block moves up an incline with constant speed. What is the total work Wtotal done on the block by all forces as the block moves a distance L = 4.50 m up the incline? Include only the work done after the block has started moving at constant speed, not the work needed to start the block moving from rest.

Part B

What is Wg, the work done on the block by the force of gravity w⃗ as the block moves a distance L = 4.50 m up the incline?

Part C

What is WF, the work done on the block by the applied force F⃗ as the block moves a distance L = 4.50 m up the incline?

Part D

What is WN, the work done on the block by the normal force as the block moves a distance L = 4.50 m up the inclined plane?

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