Question

Two planes leave a point at almost the same time. One travels north at 240 mph,...

Two planes leave a point at almost the same time. One travels north at 240 mph, the other southeast at 300 mph.

How long before they are 250 miles apart?

Science   Physics   
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Answer #1

Given,

Speed of plane(A) = 240 mph towards north

Speed of plane(B) = 300 mph towards southeast

So,

Speed of both the planes in terms of cordinates axes as shown above is as follows :

Therefore,

So,

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