The discussion revolves around determining the coefficient of static friction for a crate resting on a ramp inclined at 20 degrees. Participants are exploring the forces acting on the crate and how they relate to the frictional force.
Some participants have provided insights into the forces involved, suggesting that gravity, the normal force, and friction are key components. There is an ongoing exploration of how to effectively set up the coordinate system for analysis.
Participants are working under the constraints of a homework assignment, which may limit the information available for solving the problem. There is a specific focus on the static friction coefficient without providing direct solutions.
collegegirl said:Homework Statement
A 200N crate rests on a ramp, the angle is 20 degrees with the horizontal. What is the coefficient of static friction between the crate and ramp surfaces
Homework Equations
T=N/cos theta
The Attempt at a Solution
200/cos25 = 219
I don't know where to go from here. The answer is .47 Please show me a direction to take.!
collegegirl said:Would the three forces be gravity, the weight of the crate on the ramp, and the ramp pushing up on the crate? If so, the only one I have numbers for is gravity??