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with an identical ball at rest. After collision oballs move symmetricallywith the original direction of motion of theball. Find the new speed of each ball. Is the collielastic?40. A 0.1 kg ball moving at a speed of 10 meach making an angletheofAns. 5.77 ms of each41. A 10 kg ball A moving at a speed of 8.0 m s colwith a 20 kg ball B initially at rest. Afterballs A and B move along directions making angles30° and 45 respectively with the initial diredionmotion of A. Find the final speeds of the balls A andAns. 5.85 ms ,207 DS |
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