NCERT Solutions for Class 11 Science Kinematic 2
Important Board Questions
Kinematic
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Numericals Marks Questions
When the angle between two vectors of equal magnitudes is 2π/3, prove that the magnitude of the resultant is equal to either
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R = (P2 + Q2 + 2PQ cos θ) ¹/²
= (P² + Q² + 2P.P cos 2π/3)¹/²
= [2P² + 2P² ( -1/2)] ¹/² = P