Question

A machine does 2500 J of work in 1 min. What is
the power developed by the machine?
A. 21 W
B. 42W
C. 150 W
D. 2500 W

Answer 1

Answer:

150 w

this is your answer

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Answer 2

Answer:

Option B) 42 W is the correct answer

Explanation :

Given,

Work , w = 2500 J

time , t = 1 min = 60 sec

Power P = to find

we know that,

$P \:=\:\frac{w}{t} \\ \: \: \: \: = \frac{2500}{60} \\ \: \: \: = 41.67\:\: W \: \approx \: 42 \: W$