Problema Solution
an airplane travels at 190 km/hr for 2 hours in a direction of 220 degrees. at the end of this time, how far south of the airport is the airplane?
Answer provided by our tutors
The airplane is travelling in a straight line 2 hours * 190 km/hr in a direction of 220 degrees. We take the 0-degree line to be directly east and the south direction is the sine component (sine = opposite/hypotenuse). Let 'x' represent the opposite, then 2*190 is the hypotenuse:
x/(2*190)=sin(220)
x=-244.25
So the airplane is approximately 224 km south of the airplane.