Answer to Question #71361 in Mechanics | Relativity for Kyle

Question

A block of masses mA is on a plane inclined at an angle θ with the horizontal. It is attached to another mass mB by means of string that passes over a pulley at the top of the incline. For mA = 8kg, mB = 5kg, θ = 20o, and the coefficient of kinetic friction between mA and the plane is 0.3. Calculate the (a) acceleration of the masses and (b) the tension in the string when the system is moving.