# Calculating interception speed [duplicate]

This question is an exact duplicate of:

If 2 parallel objects are traveling at 1200 m/s and 30m apart what is the minimum speed a 3rd object would have to move to intercept both objects (assuming it can only travel at 180 degrees in straight lines, horizontal to the 2 objects course). I'm not sure what to do if it is involving vectors but I managed to get this, even though its wrong... 30 x 1200= 36,000m/s

## marked as duplicate by k170, Daniel W. Farlow, user147263, Arthur, N. F. TaussigFeb 20 '15 at 2:13

This question was marked as an exact duplicate of an existing question.

I'm not sure what the exact setup of this problem is but it seems like you can get the speed of the object as close to $1200 \text{ m/s}$ as you want, given enough time to intercept them.