Question

Related rates question

Answer 1

figured this also ? :)

Answer 2

yeah, i applied pythagoras theorem. i got a positive answer, 614 knots but idk why the solution gave -614 knots. isit because the planes are meeting so the distance between each other decreases?

Answer 3

yup, the distance has is decreasing between them.. so it has to be negative

Answer 4

i see, i knew it, thanks!(:

Answer 5

np :)

http://www.wolframalpha.com/input/?i=1%2F%282%2813%29%29*%28-2*5*442++-+2*12*481%29