A banner in the shape of an isosceles triangle is hung over the side of a building. The banner has a base of 30ft (at the roof),
a height of 20ft, and weighs 50lb. Write down an integral for the work required to lift the banner entirely onto the roof of the building.
1 answer:
Answer:
W = 9600000 joules
Step-by-step explanation:
From the given information:
The area of the banner = 1/2 × 30 × 20 = 300 ft²
The mass of the banner = 300 × 50 = 15000 pounds
Now; the integral for the required work is:

here;
h = height of the building
F = mg = 15000g
g = 32 ft/s²
Therefore;


W = 9600000 joules
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Took the test got 100
Answer:
d. 2 solutions
+5/2,-5/2
Step-by-step explanation:
16x^2 = 100
x^2=100/16
x^2=25/4
X=√25/4
X=. +5/2,-5/2
So the answer is +5/2,-5/2
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