- #1
Medgirl314
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Homework Statement
A 15 kg crate rests on the floor. The coefficient of friction between the crate and the floor is 0.28. How much horizontal force is needed to accelerate the crate at 3.0 m/s^2?
Homework Equations
Fnet=ma
The Attempt at a Solution
m=15 kg
F-f=ma
F-[itex]M[/itex]N=ma
F-[itex]M[/itex]mg=ma
F=ma+[itex]M[/itex]mg
F=15*3+.38*15*9.8
F=81.16 N.
For a final rounded answer of: F=81.2 N.
This answer seems correct to me, could someone please confirm?
Thanks!