(Off topic but ) How do you find Magnitude for Physics(Off topic but ) How do you find Magnitude for Physics@Mathematics

Question

hero · Answer

Ugh, I hate magnitude and I hate physics

anonymous · Answer

ok are u using component vectors

anonymous · Answer

ijk vectors?

amistre64 · Answer

magnitude is just pythag thrm for vectors

anonymous · Answer

$$R^2=\sqrt{ a^2+b^2}$$

anonymous · Answer

yeah thats right

amistre64 · Answer

close, discard the ^2 from the R

anonymous · Answer

ok thanks

amistre64 · Answer

spose you have a vector <3,4> the magnitude is sqrt(3^2+4^2)

anonymous · Answer

or A force of 6.0 newtons north and a force of 8.0 newtons east act concurrently on an object. The magnitude of the resultant of the two forces is

anonymous · Answer

i would still do the same thing

amistre64 · Answer

yep, same thing; the forces are orthogonal to each other so they form a right triangle

anonymous · Answer

ok ty

anonymous · Answer

Help? A force of  100 newtons is applied to applied to an object at an angle of 30 degrees from the horizontal as shown in the diagram below. What is the magnitude of the vertical component of the force?

anonymous · Answer

100cos30

anonymous · Answer

=86N

anonymous · Answer

and how did you get that?

anonymous · Answer

its a formula i memorized back in highschool

anonymous · Answer

when calculating force without friction
you do Force applied multiplied by cosine(theta)

anonymous · Answer

or x(cos)(theta)