Question 1177585


An airplane traveling at 900 kph
 is descending at an angle of depression of 10°. How many kilometers
will the plane descend (vertically) in 5 minutes?

speed = 900 kph
time = 5 minutes = 1/12 hours

d= 900 * 1/12

d =75 km

cos 80 = AB/AC

AB = 75 * cos 80

AB = 75 * 0.173
13 km drop