It takes 8 seconds for a pulley system to lift a load that weights 400n to a height of 10 m. how much power is required? .

a. 400 watts.

b. 3200 watts.

c. 500 watts.

d. 80 watts

C. 500 watts

Explanation:

power is defined as the rate of work done

When a force causes a object to move, work is being done on the object by the force.

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