purplebird purplebird

03-01-2023
Physics

Answered

In the figure (Figure 1) a worker lifts a weight w by pulling
down on a rope with a force F. The upper pulley is attached
to the ceiling by a chain, and the lower pulley is attached to
the weight by another chain. The weight is lifted at constant
speed. Assume that the rope, pulleys, and chains all have
negligible weights.
Part A: In terms of w find the tension in the lower chain.
Part B: In terms of w find the tension in the upper chain.
Part C: In terms of w find the magnitude of the force F if the weight is lifted at constant speed.

In the figure Figure 1 a worker lifts a weight w by pulling down on a rope with a force F The upper pulley is attached to the ceiling by a chain and the lower p class=

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