Question

Question:

The power of a crane is 25000 watt. Calculate the time required by it to lift a load of 6000 kg up to the height of 20 metres.

No Spam, Please !!!!!!!!!!

Answer 1

As-Salamu-Alykum

_________

Given:-

Power =25000Watt

Mass=6000kg

Height = 20m

Solution :-

P=W/t

W=Fs

F=mg

So W=mgh

So.....

P=mgh/t

25000=6000×10×20/t

t=6000×10×20/25000


t=48sec

____________

INSHALLAH it will help U

Answer 2

Hello Mate!

Question:

The power of a crane is 25000 watt. Calculate the time required by it to lift a load of 6000 kg up to the height of 20 metres.

Solution:

We have,

Power [P] = 25000 Watt

Mass [m] = 6000 kg

Height [h] = 20 metres

Time [t] = ?

Now,

P = W/t = F × d/t = m × g × h/t

Or, 25000 = 6000 × 10 × 20/25000 [.......g = 10 m/s^2]

Or, t = 6000 × 10 × 20/25000

Or, t = 1200/25

Therefore, t = 48 second

Hence, the required time for the crane to lift the load is 48 seconds.

Hope It Helps!