QUESTION 1 / VRAAG 1 [6] Refer to the accompanying diagram. A sailboat race-course consists of four legs, defined by the displacement vectors 23.0 7,? and ? " The magnitudes of the first three vectors are as B follows: ? | = 3.20 km, |? = 5.10 km, |? | = 4.80 km. The finish line of the course coincides with the starting line. Using the data in the drawing, calculate the magnitude of the fourth leg of the 35.0 race, as well as the size of the angle, e. Verwys na die gepaardgaande diagram. 'n Seilbootresies-baan bestaan wit vier dele wat gegee word deur die verplasingsvektore A 2, 2, ?, en ? . Die groottes van die eerste drie vektore is: ? | = 40.0 3.20 km, ?' = 5.10 km, ? | = 4.80 km. Die eindpunt en beginpunt van die resiesbaan is dieselfde. Gebruik die data in die Finish Start skets en bereken die grootte van die vierde deel van die resies sowel as die hoek e. (__/6)