north = 21 - 26 = - 5
east = 16
distance = sart (5^2+16^2)
on x y axis system
tan h = -5/16
h = -17.35
so 17.35 degrees below x axis
which is a compass bearing clockwise from north of
17.35 + 90 = 107.35
about ESE
1. A delivery truck travels 21 blocks north, 16 blocks east, and 26 blocks south. What is its final displacement from the origin? Assume the blocks are equal length.
2. Vector V1 is 6.6 units long and points along the negative x axis. Vector V2 is 8.5 units long and points at + 55° to the positive x axis. (a) What are the x and y components of each vector?
(b) Determine the sum V1 + V2 (magnitude and angle).
3. A diver running 2.5 m/s dives out horizontally from the edge of a vertical cliff and 3.0 s later reaches the water below. How high was the cliff and how far from its base did the diver hit the water?
1 answer
2 answers