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Figure 3 [a] shows a lorry on a incline road. The coefficient of static friction between the tires of the 8000−kg lorry and the road is μs = 0.6. Draw the free body diagram. Figure 3[a] (ii) If the lorry is stationary on the incline road and α = 15∘, determine the magnitude of the total friction force exerted on the tires by the road. (iii) Determine the largest value of α for which the truck will not slip? (50 marks)

Figure 3 [a] shows a lorry on a incline road. The coefficient of static friction between the tires of the 8000−kg lorry and the road is μs = 0.6. Draw the free body diagram. Figure 3[a] (ii) If the lorry is stationary on the incline road and α = 15∘, determine the magnitude of the total friction force exerted on the tires by the road. (iii) Determine the largest value of α for which the truck will not slip? (50 marks)

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  1. [a] (i) Figure 3 [a] shows a lorry on a incline road. The coefficient of static friction between the tires of the 8000 − k g lorry and the road is μ s = 0.6 . Draw the free body diagram. Figure 3 [ a ] (ii) If the lorry is stationary on the incline road and α = 15 ∘ , determine the magnitude of the total friction force exerted on the tires by the road. (iii) Determine the largest value of α for which the truck will not slip? (50 marks)

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