The diagram above illustrates two boxes P and Q of masses 27.3 kg and 6.2 kg respectively on a smooth horizontal surface. If a force F of 150 N is applied to the combined forces, calculate the acceleration.
Total mass of the two boxes = 27.3 + 6.2 = 33.5kg
F = ma
a = Fm = 15033.5 = 4.4776... ≈ 4.5 ms−2
