Svar 2.2:2
FörberedandeFysik
(Skillnad mellan versioner)
m |
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Rad 1: | Rad 1: | ||
- | '''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N | + | '''R'''<math>=[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N</math><br\> |
- | [(192,84–69,46)e_x+(229,81+393,92)e_y)]N | + | <math>=[(192,84–69,46)e_x+(229,81+393,92)e_y)]N=(123,38e_x+623,73e_y)N</math> |
Versionen från 15 december 2009 kl. 14.09
R\displaystyle =[(300\cos50^\circ –400\cos80^\circ )e_x+(300\sin50^\circ +400\sin80^\circ )e_y]N
\displaystyle =[(192,84–69,46)e_x+(229,81+393,92)e_y)]N=(123,38e_x+623,73e_y)N