Aplane flying horizontally at an altitude of 1 mi and a speed of 560 mi/h passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 4 mi away from the station. (round your answer to the nearest whole number.)

Given:

altitude, x = 1 mile

speed, v = 560 mi/h

distance from the station, x = 4 mi

Solution:

To find the rate,

Now, from the right angle triangle in fig 1.

Applying pythagoras theorem:

differentiating the above eqn w.r.t 't' :

                 (1)

Now, putting values in eqn (1):

The rate at which distance from plane to station is increasing is:

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

d.7.5cm is your answer