Chain Rule Problem. Chain Rule Problem. A worker pushes a heavy crate across a warehouse floor at a constant velocity. If the crate weighs W pounds and the worker applies a force F at an angle θ, as shown in the figure below, then F(θ) = μW sec(θ) 1 + μ tan(θ)
where μ is a constant (the coefficient of friction). For the case where W = 125 lb
and μ = 0.30,
when θ = 33°.
(Round your answer to two decimal places.)
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