During an elbow flexion exercise, the relative angle at the elbow is 118 degrees at 0.67 seconds and 82 degrees at 0.75 seconds. what is the average velocity of the elbow in degrees / seconds?

Aboat travels at 15 m/s in a direction 45° east of north. the boat then turns and travels at 18 m/s in a direction 5° north of east. what is the magnitude of the boat's resultant velocity? round your answer to the nearest whole number. /s what is the direction of the boat's resultant velocity? round your answer to the nearest whole degree. ° north of east