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A ball with a mass of .012 kg moving at 15.0 m/s collides with a second ball with a mass of 36 g
moving at 5.0 m/s. After the collision, the 12 g ball moves in the same direction at 6.0 m/s. What
is the resulting velocity of the 36 g ball?

Respuesta :

Answer:

Final velocity of ball B V2 = 8 m/s

Explanation:

Given:

Mass of Ball A M1 = 12 gram

Mass of Ball B M2 = 36 gram

Initial velocity of ball A U1 = 15 m/s

Initial velocity of ball B U2 = 5 m/s

Final velocity of ball A V1 = 6 m/s

Find:

Final velocity of ball B V2

Computation:

Using conservation of momentum;

M1U1 + M2U2 = M1V1 + M2V2

(12)(15) + (36)(5) = (12)(6) + (36)(v2)

180 + 180 = 72 + (36)(v2)

Final velocity of ball B V2 = 8 m/s

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