(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A sailboat is sailing north with a speed of 12m/s. A wind begins to blow and 72s later the boat's velocity is 18 m/s, 25 degrees north of west. What is the magnitude and direction of the boat's average acceleration during this interval? What is the magnitude and direction of the boat's average velocity and displacement?

2. Relevant equations

v = d/t

sin = opp/hyp

cos = adj/hyp

tan = opp/adj

pythagorean theorem

3. The attempt at a solution

Ok I sketched a drawing and made triangles and tried to make them symmetric, but I only confused myself.

x = (18m/s)(72s) = 1296 m

sin 25 = x/1296m = 547.71 m

cos 25 = x/1296m = 1174.57

This is as far as I can get. Any help would be greatly appreciated. Thanks

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# Homework Help: Physics 2d Kinematics Question

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