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September 21, 2014

September 21, 2014

Posted by **What?!** on Monday, June 30, 2008 at 8:39pm.

I did this: a b cos60/^2 and then multiplied the whole thing by 2 (because it is b) I wound up with an answer of 0.75. Is this correct?

- Calculus -
**bobpursley**, Monday, June 30, 2008 at 9:07pmI dont understand your logic. The projection of the area on the ground is ab*cos60, which is not .75m^2

- Calculus -
**Derek**, Monday, June 30, 2008 at 9:15pmMy logic was this, as stated from a text book, which also showed your way: the projection of vector a onto b is found by (magnitude a)(magnitude b)(vector b) all over (magnitude b)2

- Calculus -
**bobpursley**, Tuesday, July 1, 2008 at 9:34amThis is not a projection of a vector, it is a projection of area.

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