The 21 lb collar starts from rest at A and is lifted with a constant speed of 3 ft/s along the s

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The 21 lb collar starts from rest at A and is lifted with a constant speed of 3 ft/s along the smooth rod. (Figure 1) Part A Determine the power developed by the force F at the instant shown. Express your answer to three significant figures and include the appropriate units. Figure P= 0.0364 hp