JEE Mains 8-Apr-2023 Shift 2 Solved Paper

A bullet of mass 0.1‌kg moving horizontally with speed 400ms−1 hits a wooden block of mass 3.9‌kg kept on a horizontal rough surface. The bullet gets embedded into the block and moves 20m before coming to rest. The coefficient of friction between the block and the surface is (. Given g=10m∕ s2)