An engine pumps up 1,000kg of water through a height of 10m in 5s. Calculate the power of the engine in kilowatt. Take g=10m s-1

20Kilowatt

Explanation:

Power is the rate of work done per time. It can be calculated using the formula:

Power = Energy/time

Energy = mass × acceleration due to gravity × height ÷ time

Power = mgh/t

Where;

m = mass (1000kg)

g = acceleration due to gravity (10m/s²)

h = height (10m)

t = time (s)

Power = 1000 × 10 × 10 ÷ 5

Power = 20000 watt

In kilowatt = 1000watt, the power is:

20Kilowatt or 20Kw

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

object 2 because all the other ones are wrong