A 1.8-kg object is pulled along the floor with a force of 7.0 N acting horizontally. If the object accelerates at 2.4 m/s^2, how much kinetic friction is acting?
F = ma
so you should only need 1.8*2.4 = 4.32N
that means that 2.68N is friction.
so you should only need 1.8*2.4 = 4.32N
that means that 2.68N is friction.