A 50 Kg Crate Is Lifted To A Height Of 10 Meters If It Took 5 Seconds To Lift The Crate Using A Machine What Was The Power Rating Of The Machine?

The power is work per time.
power = (mass*gravity*height)/(time)
= 50 kg*9.8 m/s²*10 m/(5 s)
= 980 Nm/s
= 980 Watts