2. An object of mass 5 kg is moving in a straight line.
As a result of experiencing a forward force of \(F\) newtons and a resistant force of \(R\) newtons it accelerates at \(0.6 \mathrm {~m} \mathrm {~s} ^ { - 2 }\) Which one of the following equations is correct? $$F - R = 0 \quad F - R = 5 \quad F - R = 3 \quad F - R = 0.6$$