Physics

Problem

A winch raises loads in two successive stages: • Stage A: operates at

600\,\text{W}

for

90\,\text{s}

. • Stage B: operates at

1.2\,\text{kW}

for

2\,\text{min}

. a. (i) Find the work done in Stage A. b. (ii) Find the work done in Stage B. c. (iii) Calculate the total work done during the entire operation. d. (iv) Compute the average power developed over the whole duration of the operation.

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