Question

Problem 1: An ME 10 student is riding in an elevated trolley car that is suspended from an inclined track by two wheels, C and D. When the drive motor fails, the student uses a rope to slowly pull the car up the incline. If the student must apply a 60-lb force to the rope, what is the combined mass of the student and car? The center of mass of the car and student combined is located at G. The rope is attached to the car at A and wraps around a frictionless pulley at B. (a) Create a clearly drawn-free body diagram adequate to solve parts (b) and (c) (b) Determine the combined mass of the student and car. (c) Determine the reaction force at each wheel. 5.5 ft 4 ft 6 ft 2 ft O) D Oo 5 ft 30 0 3 ft

Answer 1