- #1
axlg38
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Homework Statement
Someone pushes a crate with a force F at 21° below the horizontal. The crate weights 38 kg, and the coefficient of static friction between the crate and the ground is .57. Find the amount of force needed to move the crate.
Homework Equations
f=ma
Fs=([itex]\mu[/itex]s)(Fn)
The Attempt at a Solution
First i tried to find Fn, so i multiplied the mass by 10, and got 380N. Then i added Fsin21 to find Fn...thats about as far as i got haha i don't know what to do after that. i know i need F, but i don't know how to find what it is.