Question

HELP PLEASE I NEED SOMEONE REALLY GOOD IN CALC 2 PLEASE HELP!

Answer 1

what's your question? :)

Answer 2

https://books.google.com/books?id=PTELAAAAQBAJ&pg=PA532&lpg=PA532&dq=power+lines+are+constructed+by+stringing+wire+between+supports+and+ad&source=bl&ots=_wzBALOMoG&sig=liLxdakgthyG-dTK5Q1wi8-5-KU&hl=en&sa=X&ei=NcfwVOiFKsiqggTlyYOADQ&ved=0CCkQ6AEwAw#v=onepage&q=power%20lines%20are%20constructed%20by%20stringing%20wire%20between%20supports%20and%20ad&f=false

Answer 3

the Project problem

Answer 4

you can use formula for length of the arc to answer your first question there (a): http://tutorial.math.lamar.edu/Classes/CalcII/ArcLength.aspx

Answer 5

after you calculate the length, you can then use that length of the wire to calculate (b) using simple distance = time * speed equation

Answer 6

and (c) is basically just replacing 'x' in the initial catenary equation with L/2 and unfolding it.

Answer 7

thanks!!!

Answer 8

np

Answer 9

is this ok for letter a?

Answer 10

dy/dx = (T/(ug)) sinh(ugx/T)(ug/T) = sinh(ugx/T)

1 + (dy/dx)^2 = 1 + sinh^2(ugx/T) = cosh^2(ugx/T)

[1 + (dy/dx)^2]^(1/2)= cosh(ugx/T)

integral of [1 + (dy/dx)^2]^(1/2) dx = integral of cosh(ugx/T) dx = [T/(ug)] sinh(ugx/T)