Physics, 22.03.2021 19:50, Graciouzgigi1394

Two blocks of masses 9 kg and 15 kg are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord holding them together is burned, after which the block of mass 15 kg moves to the right with a speed of 7.9 m/s. What is the velocity of the other mass in m/s? Answer in units of m/s.

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Two blocks of masses 9 kg and 15 kg are placed on a horizontal, frictionless surface. A light spring...