MCQ
Three forces starts acting simultaneously on a particle moving with velocity $\vec v.$ These forces are represented in magnitude and direction by the three sides of a triangle $ABC$ (as shown). The particle will now move with velocity
  • $\overrightarrow {v\,} $ remaining unchanged
  • B
    Less than $\overrightarrow {v\,} $
  • C
    Greater than $\overrightarrow {v\,} $
  • D
    $\overrightarrow {v\,} $ in the direction of the largest force $BC$

Answer

Correct option: A.
$\overrightarrow {v\,} $ remaining unchanged
a
(a)Net force on the particle is zero so the $\overrightarrow v $ remains unchanged.

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