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.
-
4.5 ms\(^{-2}\)
- 33.5 ms\(^{-2}\)
- 70 ms\(^{-2}\)
- 150 ms\(^{-2}\)
The correct answer is: A
Explanation
Total mass of the two boxes = 27.3 + 6.2 = 33.5kg
F = ma
a = \(\frac{\text{F}}{\text{m}}\) = \(\frac{150}{33.5}\) = 4.4776... ≈ 4.5 ms\(^{-2}\)