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Question 1

A vector in the xy plane has a magnitude of 25m and an x component of 12m. The angle it makes with the positive x axis is:
a.
64 degrees
b.
61 degrees
c.
26 degrees
d.
241 degrees
e.
29 degrees

2 answers

the angle whose cosine is ... 12 / 25

25*Cos A = 12.
A =

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