Question 9
The ramp with a uniform wooden box is tilted and reaches a maximum angle of θ₁ (as shown in Figure 9(a)) before the box topples over at a slightly larger angle, θ₂ as shown in Figure 9(b).
(a) On the figure in the Answer Booklet, draw arrows to represent the forces acting on the box. Label your arrows with the names of the forces.
(b) Explain why the box in Figure 9(a) topples over if the angle of inclination θ₁ increases further.
(c) Explain why the box in Figure 9(a) will slide down the ramp when oil is spilled down from the top of the ramp.
(a) On the figure in the Answer Booklet, draw arrows to represent the forces acting on the box. Label your arrows with the names of the forces.
(b) Explain why the box in Figure 9(a) topples over if the angle of inclination θ₁ increases further.
(c) Explain why the box in Figure 9(a) will slide down the ramp when oil is spilled down from the top of the ramp.