Q172 / 225 · JEE Main 2003 · Physics
Three forces start acting simultaneously on a particle moving with velocity, $\overrightarrow{\mathrm{v}}$. These forces are represented in magnitude and direction by the three sides of a triangle $\mathrm{ABC}$. The particle will now move with velocity


- Aless than $\overrightarrow{\mathrm{v}}$
- Bgreater than $\overrightarrow{\mathrm{v}}$
- C$|\mathrm{v}|$ in the direction of the largest force $\mathrm{BC}$
- Correct answerD$\overrightarrow{\mathrm{v}}$, remaining unchanged
Solution
According to triangle law of forces, the resultant force is zero.
In presence of zero external force, there is no change in velocity
Hence, the correct answer is option: 'D'.