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nintendude794
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Homework Statement
A 25 kg box slides down a 26 degree ramp with an acceleration of 1.32 m/s2.
The acceleration of gravity is 9.81 m/s2
Find the coefficient of kinetic friction between the box and the ramp.
Homework Equations
mass = m = 25 kg
angle = (theta) = 26 degrees
acceleration = a = 1.32 m/s2
gravity = Fg = 9.81 m/s2
coefficient of kinetic friction = Mk = Fk/Fn
Fk = resistance, friction? Force opposite Mass*Acceleration.
Fn = perpendicular to the object's motion, upward
The Attempt at a Solution
Fµ = Fn - COS26(I don't know...)
Attached is a pic of my teacher's process for solving the same problem, only with different values.
I'm clueless. Teacher said this is the toughest of the 14 problems that are due in 6 hours, so I thought I might seek assistance in learning how to do it. Please and thanks. :)