Question

A stack of K-Rails, used for highway construction, are pulled along a ramp angled 39° to the ground with a force 12,065 N as shown below. What is the horizontal force required to pull the K-Rails

Answer 1

\[\cos (\theta)=F _{x}/F\]
F is the hypotunese
\[F _{x}=F \cos (\theta)\]
\[F _{x}=12,065N*\cos (39)\]

Answer 2

whats the answer ?

Answer 3

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Answer 4

are you allowed to use calculator
if yes just use it to calculate