What is the coefficient of friction between the road and the wheels of a 1400kg truck accelerating at 2 m/s/s if the force applied by the engine to the wheels is 4000N.
Fn = m * g
Ff = mu * Fn
The Attempt at a Solution
I do not know how to resolve this as I don't know Ff or mu (i.e. two variables)
Any asisstance (not answer) would be appreciated.