Add the vectors
12N30E+8E
12sin30 N + 12 cos20E+8E
work that out into N, E vecots
xxxN + yyy E
true speed=sqrt (xxx^2 + yyy^2)
direction: arc tan (xxx/yyy) N of E
a man is driving his motor boat at 12 mph travelling N 30 E. The river currents are flowing due East at 8 mph. (A) express the true velocity of the motorboat as a vector. (B) what is the true speed of the motorboat? (C) What is the true direction of the motorboat?
1 answer
1 answer