Homework Help: Physics

Posted by Sam on Sunday, September 14, 2008 at 6:34pm.

what displacement must be added to a 50 cm displacement in the +x direction to give a resultant displacement of 85 cm at 25 degrees?
(i know the ans, just need to know how to get the ans)

Physics - bobpursley, Sunday, September 14, 2008 at 6:53pm
Take the resultant, figure the vertical and hoizontal component of the resultant.

vertical 85sin25
horizontal 85 cos25

So the added displacement must supply
vertical 85 sin 25
horizontal 85 cos25 -50cm

use these components to get the displacement and angle.

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