Question

A machine lifts a 24 kg block to a height of 20 m in 2 minutes. The power of the machine is

Answer 1

Answer:

30 minutes and 50 minutes

Answer 2

Answer:

The power of the machine is 40watts.

Explanation:

Given :-

m= 24kg

h= 20m

time(t) = 2 min = 120 sec

Workdone in lifting a box (W) = mgh

W = 24×10×20

W = 4800 joules

Power required (P) = $\frac{W}{T}$

 P = $\frac{4800}{120}$

 P = 40 watts