A ball rolls along a smooth surface with an initial velocity of v0 = 5 m/s and enters a rough section of the surface with a friction coefficient of u = 0.017 and a length of 5 m, after which it undergoes a perfectly inelastic collision with a stationary cube, the mass of which is 3 times greater, and they move together...
(I love these physics problems, they are like separate stories - it went there, met someone, and they went together x) break them somehow!)

За всем следят машины благодати и любви.