Solve the problem.
-The air speed of an airplane is 670 km/hr and its angle of climb is 6.08°. What is its ground speed (to the nearest km/hr)?
A) 651 km/hr
B) 656 km/hr
C) 661 km/hr
D) 666 km/hr

Question

Quizplus · Accepted Answer

The ground speed of the airplane can be found by multiplying its air speed by the cosine of its angle of climb. Using the given air speed of 670 km/hr and an angle of climb of 6.08°, the calculation is as follows: ground speed = 670 * cos(6.08°). The cosine of 6.08 degrees is approximately 0.994, so the ground speed is approximately 666 km/hr.

Solve the Problem. -The Air Speed of an Airplane Is 670 Km/hr and 670