A certain mountain road is inclined 3.1° with respect to the horizon. What is the change in altitude of the car as a result of its traveling 2.90 km along the road?
A)157 m
B)181 m
C)116 m
D)203 m
E)289 m

Question

Quizplus · Accepted Answer

The change in altitude is given by the product of the distance traveled and the sine of the angle of inclination. So, the change in altitude is 2.90 km * sin(3.1°) = 0.157 km = 157 m.

A Certain Mountain Road Is Inclined 3