Question

An adventurous aardvark arduously ambles from (3.0, 2.0) m to (−4.0, −2.0) m. What is the displacement in polar coordinates?

Answer 1

change in x = -7
change in y =-4

d^2 = x^2+y^2 = 49+16 = 65
so r = sqrt 65

angle in quadrant 3
tan angle below -x axis = -4/-7
so angle below x axis = 29.7
theta = 180+29.7 = 209.7