The drawing shows a 21.8-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, and, are applied to the crate, and it begins to move. The coefficient of kinetic friction between the crate and the floor is k = 0.311. Determine the (a) magnitude and (b) direction (relative to the x axis) of the acceleration of the crate