A cаr оf mаss 250 kg is mоving tо the right аt 25 m/s, it collides with a car of 350 kg that is initially at rest. The cars do not couple. The 250 kg car moves to the left after the collision with a velocity of -5 m/s. What is the velocity of the 350 kg car after the collision? Use '+' or '-' to indicate the direction of the velocity. Assume the collision is perfectly elastic.