October 6, 2015

Homework Help: Please Help!!!!!!

Posted by Desperate!!!! on Monday, November 21, 2011 at 8:07pm.

A hot hair balloon is rising vertically 20 ft/sec while the wind is blowing horizontally at 15 ft/sec. Find the speed v of the balloon and the angle x it makes with the horizontal.

I know how to solve this problem, but I don't understand why or how you know it's a right angle.

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