Physics - NLM Question with Solution | TestHub

The man stands on a weighing machine fixed on the 60° inclined face of the wedge. The machine reads the NORMAL force between the man and the machine, which is perpendicular to the incline.

The wedge accelerates straight up with a = 2 m/s^2, so the effective gravity inside the accelerating frame is g + a = 12 m/s^2, directed vertically down. Its component perpendicular to the incline is

$$(\mathrm{g}+\mathrm{a})\cos 60^{\circ }=12\times \frac{1}{2}=6\mathrm{m}/{\mathrm{s}}^2$$

$$\mathrm{N}=\mathrm{m}(\mathrm{g}+\mathrm{a})\cos 60^{\circ }=60\times 6=360\mathrm{N}$$

Correct option: (C).