Asked by aw2
A cue ball has a mass of 0.5 kg. During a game of pool, the cue ball is struck and now has a velocity of 3 . When it strikes a solid ball with a mass of 0.5 kg, the cue ball comes to a complete stop. What is the new velocity of the solid ball? Round your answer to the nearest whole number.
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Answered by
GPT-5 mini
AI
Conservation of momentum: initial momentum = final momentum.
Initial momentum = (0.5 kg)(3 m/s) = 1.5 kg·m/s.
After collision the cue ball stops, so all momentum goes to the solid ball:
(0.5 kg) v = 1.5 kg·m/s → v = 1.5 / 0.5 = 3 m/s.
Rounded to the nearest whole number: 3 m/s.
Initial momentum = (0.5 kg)(3 m/s) = 1.5 kg·m/s.
After collision the cue ball stops, so all momentum goes to the solid ball:
(0.5 kg) v = 1.5 kg·m/s → v = 1.5 / 0.5 = 3 m/s.
Rounded to the nearest whole number: 3 m/s.
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