# Math Help - Another Physics problem

1. ## Another Physics problem

I've worked out all my problems and got stuck on this one. I am uncertain on how to set this problem up.

A crate has a mass of 27 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 76 N?

2. ## Re: Another Physics problem

$F_{net} = ma$

$F_A - f = ma$

$F_A = ma + f$

3. ## Re: Another Physics problem

F_A = 27 x 3 + 76 = 157N

Doesn't look right. Not sure

4. ## Re: Another Physics problem

Ok this is right. LOL .... to much of studying gets me confused...thanks skeet