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.

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Answer 1

Answer :

The required time is 47.04 seconds.

Step-by-step explanation :

Given :

Power of crane = 25000 watt

Mass = 6000 kg

Height = 20 metres

Calculate the work done ;

Work done = mgh

⇒ Work done = 6000 × 9.8 × 20

⇒ Work done = 1176000 J

Calculate the time ;

Power = Work done / time

⇒ 25000 = 1176000 / time

⇒ Time = 1176000 / 25000

⇒ Time = 47.04 seconds.

Hence, the required time is 47.04 seconds.

Answer 2

$\huge\boxed{\texttt{\fcolorbox{Red}{aqua}{hey buddy!!!!!!}}}$ [/tex] here is ur answer.., power= 25000 watt, m = 6000kg, h or s= 20 m,,, we have p= F×s/t = m×g×s/t= m×g×s/t,, t = m×g×s/p= 6000×9.8×20/25000= 12000×98/25000= 47.04seconds..[/tex]$\large{\red{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\underline{\underline{hope\:it\:helps\: you}}}}}}}}}}$