Question
part (a) and (b)
l Help Online HW 03 Begin Date: 9/8/2017 5:00: 00 PM - -Due Date: 9/15/2017 5:00:00 PM End Date: 9/22/2017 5:00:00 PM (1106) Problem 2: Suppose you walk 19.5 m straight west and then 22 m straight north Otheex 5000 Part (a) How far are you, in meters, fron your starting point? Grade S Deducti Potentia sin cotan asinO tan() | | ( 1 acoso Submis Attempt (196 per detailed coso 4 5 6 atan acotan sinh cosh) anh cotanh . Degrees Radians 0 NO Submit Hint Hints: 3e deduction per hint Hints remaining: 3 Feedback: 1%, deduction per feedback 50% Part (b) what is the compass direction, in degrees measured West of Nort , of a line connecting your starting point to y position? All content 2017 Expert TA, LLC
Explanation / Answer
r1 = -19.5 i
r2 = 22 j
r = r1 + r2 = - 19.5i + 22j m
(A) magnitude = sqrt(19.5^2 + 22^2) = 29.4 m
(B) theta = tan^-1(19.5 / 22) = 42 deg
