1. The problem statement, all variables and given/known data There is a body of mass 500kg accelerating at 2.5ms^-2. It experiences a frictional force of 1000N. 2. Relevant equations Resultant Force = ma 3. The attempt at a solution Resultant Force = (500)(2.5)N = 1250N The body is moving forward with a net force of 1250N A frictional force of 1000N is acting on the opposite direction. The body must be moving with this forward force: Forward Force - Frictional Force = Resultant Force Forward Force = (1250 + 1000)N = 2250N But what does all this mean? The body is accelerating. Shouldn't the forward force as well as the frictional force be continuously increasing?