The sport of curling is quite popular in Canada. A curler slides a 19.1-kg stone so that it strikes a competitor's identical stationary stone at 6.90 m/s before moving at an angle of 60.0⁰ counterclockwise from its initial direction. The competitor's stone moves off at 6.30 m/s. Determine the final speed of the first stone v1,f. Determine the final direction of the second stone as an angle a relative to the first stone's initial direction of motion. Let counterclockwise from the first stone's initial direction define the direction of positive angles.

The sport of curling is quite popular in Canada. A curler slides a 19.1-kg stone so that it strikes a competitor's identical stationary stone at 6.90 m/s before moving at an angle of 60.0⁰ counterclockwise from its initial direction. The competitor's stone moves off at 6.30 m/s. Determine the final speed of the first stone v1,f. Determine the final direction of the second stone as an angle a relative to the first stone's initial direction of motion. Let counterclockwise from the first stone's initial direction define the direction of positive angles.