Answer:
The average power is 619 W.
(B) is correct option
Explanation:
Given that,
Weight = 62.0 kg
Height = 4.28 m
Time t = 4.20 s
We need to calculate the work done
Work done by woman
[tex]W=mgh[/tex]
Where,
m = mass
g = acceleration due to gravity
t = time
Put the value into the formula
[tex]W=62\times9.8\times 4.28[/tex]
[tex]W=2600.528 J[/tex]
We need to calculate the power
Using formula of power
[tex]P=\dfrac{W}{t}[/tex]
Where,
W = work done
t = time
Put the value in to the formula
[tex]P=\dfrac{2600.528}{4.20}[/tex]
[tex]P=619\ W[/tex]
Hence, The average power is 619 W.
