Question

Doua forte concurente au directiile perpendiculare si modulele:F1=12 N si F2=9 N.Care este rezultanta lor?

Answer 1

pai le aduni V CU VECTOR DEASUPRA=F1+F2
V =12+9=21

Answer 2

$F_1=12 \ N \\ F_2=9 \ N \\ \boxed{R-?} \\ \bold{Rezolvare:} \\ \boxed{R=F_1+F_2} \\ \Rightarrow R=12 \ N+9 \ N \\ \Rightarrow \boxed{R=21 \ N}.$