Overview
Two boxes (A and B) are being pulled up a stationary incline, theta= 20 degrees, at a constant speed with a force of 340N. Box A has a mass of 30kg and unknown coefficients of friction with the surface. Box B has a mass of 10.0kg and can slide without friction on the surface. We define the positive x-direction as up the ramp and the y-direction as perpendicular to the ramp. A) Pick the equation in the file that contains the unknown coefficient of friction. Solve for the unknown coefficient in terms of known variables only. (Do not plug in numbers yet). B) Calculate the numeric value for the coefficient of friction.