Two masses make a head-on (one dimensional) collision. A2 kg mass moving intially at +10 mys collides with a 4 kg mass moving initialy at -5 m/s. Ater the collision, the 2 kg mas has a velocity of-6 m/s and the 4 kg mass has a velocity of +4m/s. Which of the following best describes this collsion?a perfectly inhelastic collisionphysically impossible, Le. one or more required conservation laws are violatedan inelastic, but not perfectly inelastic, collision in which some mechanical energy is lostaperfectly elastic colisionacollsion in which linear momentum is not conserved but kinetic enhergy is conserved

In a perfectly in elastic collision the momentum and kinetic energy is always conserved

Answered: - m/s and the 4 kg mass has a velocity…

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