Answer:
a, c and d
Explanation:
Force is the product of mass of a body and its acceleration. Unbalanced force is a force that produces a net force for example a 5 N force acting in the positive x axis direction is opposed by 10 N for in the negative x axis
the net force or unbalance force = 5 - 10 = - 5N which means the body will move in the negative axis direction. Factors which may result in unbalanced force are a) the net force is negative c) the net force is positive d) there is a change in motion of the body
