a track covers 40m in 8.5ssc while smoothly slowing down to afunal speed of2.8m/s. find it's original speed and it's acceleration​

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