- #1
yitriana
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Homework Statement
A dog pulls a sled with unspecified force at 25° above horizontal. Mass of sled-passenger-rope partile is 80 kg and there is negligible friction. Find the maximum magnitude of force F that can be applied to the rope without lifting the sled off the surface.
Homework Equations
sum of forces = ma
normal force is Fn
mass of particle is m
The Attempt at a Solution
Fxnet = Fcos(25) = max
Fynet = Fsin(25) - 9.8*m + Fn
In any case where the sled is not lifted, Fynet = 0, since acceleration is in direction of x only (for this problem).
However, I am confused about how to find maximum force before sled is lifted.