Three forces start acting simultaneously on a particle moving with velocity `vec(v)`. These forces are represented in magnitude and direction by the three sides os a triangle ABC (as shown). The particle will now move with velocity.

Options

A. less than v
B. greater than v
C. v in the direction of largest force BC
D. v remaining unchanged

Answer

D

Explanation

Resultant force is zero, as three forces acting on the particle can be represented in magnitude and direction by three sides of a triangle in order. Hence, by Newton's 2nd law `(F=m(dv)/(dt))`, particle velocity (v) will be same.