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4. In the game of billiards, all balls have a mass of 0.17 kg. The cue ball, initially movlng 3 m/s E, collides with the 2 ball, initially at rest. After the collision, the 2 ball travels at 1.5 m/s in a direction of 60° S of E. What is the speed of the cue ball after the collision if it travels at an angle of 30° N of E? A. 1.5 m/s B. 1.8 m/s C. 2.6 m/s D. 4.3 m/s E. 5.2 m/s
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E option is correct.chir cha

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