A motorist drives south at 28.0 m/s for 3.00 minute, then turns west and travels at 25.0 m/s for 2.20 minute, and finally travels northwest at 30.0 m/s for 1.00 minute. For this 6.20 minute trip, determine the following values.
1. Total vector displacement (m) .
2. Average speed (m/s).
3. Average velocity m/s (magnitude).