If a cage containing a truck of coal weighing 750 kg is raised to a height of 90 m in a minute, what is the total power expended?
[g = 10 m\s\(^2\)]
a
11.50 kw
b
12.60 kw
c
11.25 kw
d
12.10 kw
Explanation
Correct Option
cVideo Explanation
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Odemosad
1 year ago
P = W / T
W = F * d = 750 * 10 * 90 = 675000
P = 675000 / 60 = 11250 watts
In kw : 11250 / 1000 = 11.25kw



