Samuel travels to the east at 15m/hr for 20 minutes. Then hevtravels 30 degrees north of east 2m/s for 15 minutes. What is his displacement?

North displacement 15*(1/3) +sin30*2*(1/4)

= 5.5 miles
East displacement = 2*(1/4)cos30
= 0.433 miles

Total displacement is the hypotenuse. 5.517 miles