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The mechanism shown in the figure (Figure 1)is used to raise a crate of supplies from a ship's hold. The crate has total mass 43 kg. A rope is wrapped around a wooden cylinder that turns on a metal axle. The cylinder has radius 0.26 m and a moment of inertia I = 3.0 kg . m about the axle. The crate is suspended from the free end of the rope. One end of the axle pivots on frictionless bearings; a crank handle is attached to the other end. When the crank is turned, the end of the handle rotates about the axle in a vertical circle of radius 0.12 m, the cylinder turns, and the crate is raised Figure 1 of 1 10.12 m
Part A What magnitude of the force F applied tangentially to the rotating crank is required to raise the crate with an acceleration of 1,40 m/s? (You can ignore the mass of the rope as well as the moments of inertia of the axle and the crank.) Express your answer using two significant figures. VALO ? F= kN Submit Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining Provide Feedback Next >