If there are 2 vectors that have equal magnitude, and have the angle (theta) between the two of them, what is the value of (theta) if the resulting vector has the same magnitude as well?

  1. 👍 0
  2. 👎 0
  3. 👁 68
asked by George
  1. Theta= 120 degrees you can demonstrate this with the law of cosines.

  2. the bisector of the angle between the vectors (the resultant)
    ... must have a component of half the magnitude from each vector

    draw a picture

    cos(Θ / 2) = 1/2

    1. 👍 0
    2. 👎 0
    posted by R_scott

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics (cross product vectors)

    Two vectors are lying in the xz plane: A=2.00i + 3.00k and B= -9.00i + 2.00k. a) What is the value of AxB? Check my solution: I found through calculations that the value is 23j. b) What is the magnitude |AxB|? I could do ABsin

    asked by steve on January 23, 2007
  2. Physics

    A football player runs the pattern given in the drawing by the three displacement vectors A ,B ,C and . The magnitudes of these vectors are A = 4.00 m, B = 17.0 m, and C = 19.0 m. Using the component method, find the (a) magnitude

    asked by Kelli on July 14, 2011
  3. Physics

    Measuring coefficients of friction. A coin is placed near one edge of a book lying on a table, and that edge of the book is lifted until the coin just slips down the incline. The angle of the incline Theta C, called the critical

    asked by Mandy on September 27, 2009
  4. st anthenis physics

    A+B+C=0out of three vector two r equal in magnitudeand magnitude of third is root 2times that of eitherof two hsving equal magnitude.than angle beteen vectors r

    asked by rashika on May 14, 2014
  5. trig

    If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta, cot theta.

    asked by Julise Alliance on February 28, 2013
  6. Trig

    I need help setting these up. 1.) Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. round to one decimal place. Theta= 35 degree, b=98 lbs, c=55lb 2.) Find the

    asked by Derrick on November 26, 2014
  7. physics

    Can you help me with this one also? I know how to do it with 3 vectors but I can't seem to draw it with 4 vectors. The magnitudes of the four displacement vectors shown in the drawing are A=16.0 m, B=11.0 m, C=12.0 m, and D=26.0

    asked by Brittany on January 23, 2011

    The figure shows two displacement vectors and . Vector points at an angle of 20.0° above the x axis and has an unknown magnitude. Vector has an x component Bx = 31.0 m and has an unknown y component By. These two vectors are

    asked by Anonymous on September 16, 2015
  9. science (physics) Need to solve this today please

    (a) Express the vectors A, B, and C in the figure below in terms of unit vectors. (b) Use unit vector notation to find the vectors R = A + B + C and S = C – A – B. (c) What are the magnitude and directions of vectors R and S?

    asked by ~christina~ on September 29, 2007
  10. Physics

    2 vectors have same magnitude.The magnitude of the resultant vector of these 2 vectors are same as either of both vectors.What is the angle between 2 vectors?

    asked by Tangy on November 21, 2014
  11. AP Physics

    there are two vectors in quadrant three one with a magnitude of 31.0N and has a direction of 117degrees in the negative direction from the x axis the other has an unknown magnitude and unkown theta in the positive direction

    asked by Sierra on November 21, 2010

More Similar Questions