## Total displacement

1. The problem statement, all variables and given/known data
In a total time of 2.0 min, a duck on a pond paddles 22 m [36 degrees N of E] and then paddles another 65 m [E 25 degrees S]
Determine the duck's
i) total distance travelled
ii) average speed
iii) total displacement
iv) average velocity

2. Relevant equations
ii) v= delta d/t
iii) C = sqrt Cx^2 + Cy^2
iv) still working on it...was focusing on iii) for quite a while

3. The attempt at a solution
i) d = 87 m
ii) v = .73 m/s
iii)Ax = 22 cos 36 = 17.8 Bx = 65 cos 25 = 58.9
Ay = 22 sin 36 = 12.9 By = 65 sin 25 =27.5

Cx = 17.8 + 58.9 = 76.7
Cy = 12.9 + 27.5 = 40.4
C = √(〖Cx〗^2+〖Cy〗^2 )
C = √(5882.89+1632.16)
C = 86.7
Therefore, the total displacement is 86.7 m
I'm hoping I'm at least on the right track...I'm starting an online physics course with absolutely no background. Thanks for any help!
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