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A ball of mass Ml = 0.250 kg and velocity V01 = +5.00 m/s (see Figure) collides head-on with a ball of mass
M2 = 0.800 kg that is initially at rest. No external forces act on the balls. a) What was the kinetic energy of the first ball before the collision; b) If the collision is completely inelastic, what are the velocities of the balls after collision?

  • physics -

    a) Can you calculate (1/2)M1*Vo1^2?

    b) by "completely inelastic" I assume you mean that they stick together and momentum ios conseved.

    Write and solve the momentum conservation equation to get the final velocity (the same for both masses).

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