Box Sliding Up Inclined Plane with Friction · PhysicsBowl 2017 #25

Physics · mechanics

Problem

A box slides with uniform acceleration up an incline. The box has an initial speed of

9.0 \frac{m}{s}

and rises vertically 2.60 m before coming to rest. If the angle of the incline is 30°, what is the coefficient of kinetic friction between the box and the incline? (Use

g = 10.0 \frac{m}{s^2}

) [Figure: Box on 30° incline] (A) 0.298 (B) 0.322 (C) 0.372 (D) 0.483 (E) 0.557

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