The sport of curling is quite popular in Canada. A curler slides a 19.1-kg stone so that it strikes a competitor's stationary stone at 6.40  m / s before moving at an angle of 120^∘ from its initial direction. The competitor's stone moves off at 5.60  m / s. Determine the final speed of the first stone and the final direction of the second one. Example 7-3 | Numerade

John Shuster, from Olympic disaster to America’s favorite curler, is back for another shot at glory