Question

A crane raises a load of 4 tornes through a vertical heigh: of 10 min 50 s. Calculate the power
of the crane in kilowatts. Take g = 9.8 m/​

Answer 1

Answer:

GIVEN: - load =4 tonnes

height=10meter

time=50s

Convert Tonnes into kg by multiplying it by 1000,

load = 4 tonnes = 4000 kg

Now, we have formula for work done,

work done =m*g*h

Put Values

⇒Work Done = 4000*10*10

⇒Work Done = 400000

∴ Work done is 400000 J

______________________

Formula for Power is :

power=work/time

Put Values

⇒Power = 400000/50

⇒Power = 8000

⇒ Power = 8 KW

∴ Power in lifting load is 8 KW

Explanation:

Explanation:THANKS ❤️