A Jet Heads in the Direction N $30 ^ { \circ }$

question 84

Essay

A jet heads in the direction N $30 ^ { \circ }$
E at a speed of $400$
mi/h. If the jet experiences a $20$
mi/h crosswind flowing due east, find (a) the true velocity $\boldsymbol { Y r } ^ { \mathrm { r } }$
of the jet
b) the true speed of the jet
c) the direction of the jet.

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Definitions:

Present Value

The present worth of a sum of money or a series of cash flows expected in the future, assuming a certain rate of return.

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Reference tables used to find the amount of compound interest earned or payable over a period of time, based on various rates and compounding frequencies.