Two vectors both equal in magnitude, …

Two vectors both equal in magnitude, have their resultant equal in magnitude of the either. Find the angle between the two vectors.
  • 1 answers

Yogita Ingle 1 month, 3 weeks ago

Let θθ be the angle between the two vectors A and B such that, |A| = |B|.

Therefore, R2=A2+B2+2ABcosθ 

=>A2=A2+A2+2AAcosθ 

[∵ |A| = |B| = |R|]

=>A2=2A2+2A2cosθ 

=>cosθ=−1/2

=>θ=120∘

Related Questions:

Hello friends how are you
  • 0 answers
What is dimensions?
  • 1 answers
How velocity can be negative ?
  • 2 answers

myCBSEguide App

myCBSEguide

Trusted by 70 Lakh Students

CBSE Test Generator

Create papers in minutes

Print with your name & Logo

Download as PDF

3 Lakhs+ Questions

Solutions Included

Based on CBSE Blueprint

Best fit for Schools & Tutors

Work from Home

  • Work from home with us
  • Create questions or review them from home

No software required, no contract to sign. Simply apply as teacher, take eligibility test and start working with us. Required desktop or laptop with internet connection