physics
posted by Tom .
A truck of mass 13,100 kg is acted upon by a driving force of 8900 N. The motion is opposed by a frictional force of 2230 N. Find the acceleration.

Force = mass x acceleration.
Really, you need the net force. If friction works in the opposite direction, you have a net force of 89002230.
Use that value in the equation for force and 13,100 kg for mass. You can then solve for acceleration in m/sec/sec also written as m/sec^2