Sudhir walks 0.40 km in a direction 60.0° west of north, then goes 0.50 km due west. What is his displacement?
According to my textbook, the equations are:
Ax = A cos θ
Ay = A sin θ
Bx = B cos θ
By = B sin θ
θ = tan-1 opposite side/adjacent side
Source: http://www.jpopovich.com/file.php/19/phy_chap5.pdf on page 122.
The Attempt at a Solution
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Both my answers are wrong according to my textbook. Can someone tell me why / explain to me?
The real answer: 0.87km at 77 degrees west
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