A crate with a total mass of 50 kg is initially at rest on a level floor. A horizontal force of 150N pushes the crate across the floor at a constant acceleration of 1.2m/s2. What is the magnitude of the frictional force acting on the crate?
The Attempt at a Solution
So this question seems so basic but I know I'm doing it wrong. All i did was plugged the numbers into the F=[tex]\mu[/tex]N formulas and got [tex]\mu[/tex]= .31. But in using that formula I am not even taking into account the acceleration and I dont know what to use in order to take it into account?! Someone please explain