A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.80 min trip, find the following values.

a) total vector displacement ___ m (magnitude)
b) __° south of west

Question

A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.80 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.80 min trip, find the following values. 

a) total vector displacement ___ m (magnitude) 
b) __° south of west

anonymous · Answer

so far i have.. 
28*3*60=5040 m
25*2.8*60=4200 m
30*1*60=1800 m
now, im stuck..