Question

A bus driver heads south with a steady speed of v1=20.0 m/s for t1=3.00 min, then makes a right turn and travels at v2=25.0 m/s for t2=2.60 min, and then drives northwest at v3=30.0 m/s for t3=1.00 min For this 6.60-min trip, calculate the following. Assume +x is in the eastward direction. 

(a) total vector displacement (Enter the magnitude in m and the direction in degrees south of west.) 

(b) average speed (in m/s) 

(c) average velocity (Enter the magnitude in m/s and the direction in degrees south of west.) 

 You are standing on the ground at the origin of a coordinate system. An airplane flies over you with constant velocity parallel to the x axis and at a constant height of 8.95 x 10³ m. At t=0, the airplane is directly above you so that the vector leading from you to it is P = 8.95 x 10³j m. At t= 30.0 s the position vector leading from you to the airplane is P30 = (8.02 x 10³i +  8.95 x 10³j) m as suggested in the figure below. Determine the magnitude and orientation of the airplane's position vector at t= 65.0 s.

Answer 1