Question

If \(\vec A\) = 5, \(\vec B\) = 8, and \(\alpha\) = 30\(^o\), determine the scalar product of the two vectors shown

Answer 1

do i just use \[5 \times 8 \times \cos (30^o)\]

Answer 2

no...i don't think that works....

Answer 3

A.B=ABCOSx
A.B=5*8cos30
A.B=40*0.866
A.B=34.64

Answer 4

i think it should be \[5 \times 8 \times \cos (150^o)\]

Answer 5

@lgbasallote lets suppose this two A and B vectors are the force pulling a body from two sides and the scalar product means finding teh work done...

Answer 6

ugh please don't relate it to physics =_=