Consider the following information: 

When a force acts on an object to cause a displacement (d) of the object, it is said that work (W) was done on the object. 

Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation:

Power (P) = work (W) / time (t)

→ P = [ force (F) x displacement (dx) ] / t

→ P = F x velocity (v)

→ P = Fv

When a force acts on an object to cause a displacement (d) of the object, it is said that work (W) was done on the object.
Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation:
Power (P) = work (W) / time (t)
→ P = [ force (F) x displacement (dx) ] / t
→ P = F x velocity (v)
→ P = Fv
The power of a motor pump is 2 kW. How much water per minute can the pump raise to a height of 10 m? (Under the influence of gravitational force, work = mass (m) × gravitational field strength (g) × height (h), where g = 10 ms–2 .)

A. 1,200 kg

Explanation

P = W/t = (m × g × h) / t 

2,000 W = [(m × 10 × 10) / 60] 

→ m = 1,200 kg 

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