The discussion focuses on calculating the coefficient of kinetic friction (uk) for a box sliding down an incline at a 30-degree angle with an acceleration of 3.1 m/s². The relevant equations include uk = fk/fn and f = ma. Participants emphasize the importance of using free body diagrams to resolve gravitational forces into components that interact with the normal force and frictional force. The cosine of the angle is mentioned, but further clarification on force components is necessary for accurate calculations.
PREREQUISITESStudents in physics courses, educators teaching mechanics, and anyone interested in understanding the dynamics of objects on inclined planes with friction.
Stuck/: said:Homework Statement
How to find the uk of a box sliding down a hill with only an angle and acceleration
Given: angle= 30 acceleration= 3.1 m/s2
Homework Equations
1. uk= fk/fn 2. f=ma
The Attempt at a Solution
i did the cosine of my angle but i am not sure that is the answer