Recent content by Rellsun

  1. R

    What is the scalar product V_1(DOT)V_2 ?

    ahh thanks that makes much more sense. i got the final answer to be -3079.2 which is indeed correct. the help is appreciated.
  2. R

    What is the scalar product V_1(DOT)V_2 ?

    ok that helps a lot i don't know why i did do that. but how do you find the z component of the V_2=51?
  3. R

    What is the scalar product V_1(DOT)V_2 ?

    Homework Statement Vector V_1 points along the z axis and has magnitude V_1 = 80. Vector V_2 lies in the xz plane, has magnitude V_2 = 51, and makes a -49o angle with the x-axis (points below x axis)Homework Equations A.B=ABCos(theta)=AxBx+AyBy+AzBz Cos(theta)=(AxBx+AyBy+AzBz)/AB The Attempt...