Determine the horizontal force required to start car moving

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Reference no: EM131062022

A loaded railroad car has a mass of 30 Mg and is supported by eight 800-mm-diameter wheels with 125-mm-diameter axles. Knowing that the coefficients of friction are µs = 0.020 and µk =0.015, determine the horizontal force required

(a) to start the car moving,

(b) to keep the car moving at a constant speed. Neglect rolling resistance between the wheels and the track.

Reference no: EM131062022

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