9) At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened and is half full, while the other box is new. The boxes, including the nails, weight 10 kg and 20 kg, respectively, and are the same size

a) As the plank tilts towards the heavier box, predict which box of nails will start to slide first. Explain your prediction

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Physics

18 September, 09:46

9) At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened and is half full, while the other box is new. The boxes, including the nails, weight 10 kg and 20 kg, respectively, and are the same size

a) As the plank tilts towards the heavier box, predict which box of nails will start to slide first. Explain your prediction

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Answers (1)

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Zaid Meyers · Answer 1

Box 1 (having a mass of 10 kg) will slide first as it has less inertia than the other box. It will also require less force to overcome static friction between the surface of the plank and that of the first box.