Question

An airplane is flying horizontally at 115 m/s, at a 20.5 degree angle north of east. State its velocity in rectangular coordinates. Assume that north and east are in the positive direction.
sin 20.5 = 0.35
cos 20.5 = 0.94

so its velocity = 115*.94<b>i</b> + 115*.35<b>j</b>
= ...
148

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