A winch raises loads in two successive stages: • Stage A: operates at for
PHYSICS · Multi-part · CBSE · Physics · Work and Energy · Work and Energy
Problem
A winch raises loads in two successive stages:
• Stage A: operates at 600W for 90s.
• Stage B: operates at 1.2kW for 2min.
(i) Find the work done in Stage A.
(ii) Find the work done in Stage B.
(iii) Calculate the total work done during the entire operation.
(iv) Compute the average power developed over the whole duration of the operation.