Sen Add the following vectors and determine the resultants (length, angle from O). a) 10 N, 120 + 5 N, 30 b) 3 m/s, 210 + 10 m/s, 720 c) 3 m/s, 450 + 5 m/s, 1350 d) 3 m/s, 40 + 6 m/s, 1250 + 3 m/s, 680 e ) 2.5 m /s, 250 + 3 m/s, 40- 5 m/s, 60