General Physics

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A 0.500 kg sphere moving with a velocity (2.00i - 3.50j + 1.00k) m/s strikes another sphere of mass 1.50 kg moving with a velocity (-1.00i + 2.00j - 2.80k) m/s.

(a) If the velocity of the 0.500 kg sphere after the collision is (-1.00i + 3.00j - 8.00k) m/s, find the velocity of the 1.50 kg sphere and identify the kind of collision (elastic, inelastic, or perfectly inelastic).
(0 i+__ j +___ k)m/s

This is a perfectly inelastic collision.

(b) If the velocity of the 0.500 kg sphere after the collision is (-0.250i + 0.625j - 1.85k) m/s, find the final velocity of the 1.50 kg sphere and identify the kind of collision.

(__ i+__ j +___ k)m/s

This is a perfectly inelastic collision.

(c) What if? If the velocity of the 0.500 kg sphere after the collision is (-1.00i + 2.50j + a k) m/s, find the value of a and the velocity of the 1.50 kg sphere after an elastic collision. (Two values of a are possible, a negative value and a positive value. Report each with their corresponding final velocities.)

a (positive value) __________m/s^2 v2f = ________ k m/s
a (negative value) __________ m/s^ v2f = ________ k m/s

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