Vectors

Question

A particle moving with velocity $\overrightarrow{\mathrm{v}}$ is acted by three forces shown by the vector triangle *PQR*. The velocity of the particle will

Moderate

Solution

As per triangle law, ${\overrightarrow{\mathrm{F}}}_{1}+{\overrightarrow{\mathrm{F}}}_{2}+{\overrightarrow{\mathrm{F}}}_{3}=0$ i.e., net force on the particle is zero. So, acceleration is also zero. Hence velocity of the particle will remain constant.

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