Question: The constant force , F, in the cable B is _____ N. A 600 kg elevator has a counterweight Awith a mass of 200 kg.

The constant force , F, in the cable B is _____ N.

A 600 kg elevator has a counterweight Awith a mass of 200 kg. A motor supplies a constant force F on the cable at B. Neglect the mass of the cable and pulleys. The elevator moves with a speed of 10 m/s and rises at 40 m from rest. Hint: Virtual work is applicable to tension T only. (25 Points)

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