A quick distance/time question.

[skg94]

Homework Statement

A radar pulse projected at an angle of elevation of 22.0 degrees is reflected from an aircraft and returned. If the pulse takes 1.28*10^-4s to make the round trip, then the vertical height of the aircraft is? (Height of radar transmitter/receiver can be ignored)

Homework Equations

The Attempt at a Solution

I know how to do it, just use d=vt to find the hyp and then use sin feta to find vertical height.

But for time do i use 1.28*10^-4s? or use half of that since that time is the round trip?

 

[WillemBouwer]

I woud do it that way, you have the right thinking... you can also use that time and get the total distance and divide that by 2...

 

[apelling]

I thought feta was a type of Greek cheese.