Solution

Question\n\nA trolley of mass $1500\,\mathrm{kg}$ carrying sand bags of $500\,\mathrm{kg}$ is moving uniformly with a speed of $40\,\mathrm{km/h}$ on a frictionless track. After some time, sand starts leaking out of whole sand bags on the road at a rate of $0.05\,\mathrm{kg\,s^{-1}}$. What is the speed of the trolley after entire sand bags are empty?\n\nContent coming soon. Write the full solution here, or use the part files (p-i.mdx, p-ii.mdx, …) for each part.