Friction force on an inclined plane

AI Thread Summary
To determine the normal force and friction force on a 60-N block resting on a 35-degree inclined plane, a free body diagram is essential. The diagram should illustrate the gravitational force vector and the angles involved, which include 35 degrees and its complementary angles. Basic trigonometric functions such as cosine, sine, and tangent can be applied to calculate the forces acting perpendicular and parallel to the incline. Accurate calculations will reveal the necessary friction force to prevent the block from sliding. Properly visualizing the forces is crucial for solving the problem effectively.
husker11
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Homework Statement


A 60-N block rests on a 35 degree inclined plane. Determine the normal force and find the friction force that keeps the block from sliding.


Homework Equations





The Attempt at a Solution



Drew the free body diagram with each vector, not sure how to figure the normal force
 
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Hi husker11, welcome to PF.

Show your free body diagram, please, we can not help without seeing it. You can draw in Paint, and save it in jpg format. You can upload the picture if you click on "Go Advanced" and then "Manage Attachments".

ehild
 
Your freebody diagram should show a force vector due to gravity.

Use what you know about triangles to work out what other angles on the diagram are also 35 degrees, 90 degrees or 90-35 degrees.

Then use basic trig functions (eg Cos, Sin, Tan) to calculate the components acting normal to the plane and/or down the plane.
 
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