1. A sailboat leaves a harbor and sails A = 16 km East. The captain stops for lunch and, a short time later, the boat sails B = 13 km in the direction 60 North of East (60 with the positive x-axis). What is the magnitude of the resultant displacement from the harbor? Please round your answer to one decimal place.

2.

The position of a particle changes from r, = - 3.0 /+ 2.0 j + 5.0 k to /, = 4.0/+6.0j+ 7.0 k. What is the displacement of the particle? O 7.0 i+ 2.0 k O 1.0 i+ 4.0 j + 2.0 k O 7.0i + 4.0j + 2.0 k O 1.0 i + 2.0 k O 8.0 i + 6.0 kGiven two vectors A : A = 72 m @ 30" and B : B = 36 m @ 150" . What is the angle, in degrees, that the resultant vector R = A + B makes with positive x-axis? Please round your answer to one decimal place