A ladder 35 feet in length rests against a vertical wall. The foot of the ladder is 10 feet from the wall. What angle, θ, does the ladder make with the ground?
Which of the following equations can be used to solve the problem?
cosθ = 10/35 is the right answer
and if you want to find θ : you can also to do
this : θ = cos^-1(10/35) = 37,39
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from your friend
An auto weighing 2,500 pounds is on a street inclined at 10 with the horizontal. Find the force necessary to prevent the car from rolling down the hill.
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