A single axis personal transport device starts from rest with the rider leaning slightly forward. Together, the two wheels weigh 25 lbs, and each has a radius of 10 in. The mass moment of inertia of the wheels about the axle is 0.15 slug ft². The combined weight of the rest of the device and the rider (excluding the wheels) is 160 lbs, and the center of gravity G of this weight is located at x = 4 in. in front of the axle A and y = 36 in. above the ground. An initial clockwise torque M is applied by the motor to the wheels. The coefficients of static and kinetic friction are 0.7 and 0.6, respectively. find linear acceleration of the rider

 

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