Physics, 15.04.2020 02:46, punkinrichard1oxon2i

A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in the opposite direction at 3.8 m/s. If the collision is perfectly elastic, what is the change in the kinetic energy of the 620-g object? A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in the opposite direction at 3.8 m/s. If the collision is perfectly elastic, what is the change in the kinetic energy of the 620-g object? It loses 0.23 J. It loses 1.4 J. It gains 0.69 J. It loses 0.47 J. It doesn't lose any kinetic energy because the collision is elastic.

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A 620-g object traveling at 2.1 m/s collides head-on with a 320-g object traveling in the opposite d...