Question

The beacon at the airport is located 300m from a straight runway ay its least distance. The beacon rotates 10times per minute, how fast is the beam of light moving along the runway when the beam is 700 from the closest point to the beacon on the runway.

Answer 1

If your drawing is correct, you should just use the algorithm of Pythagoras to solve it:
\[a^2+b^2=c^2\]

Answer 2

Speed = 700 x 2π x 10

Answer 3

This will be in metres/min

Answer 4

hi