Question

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

• A. increase
• B. decrease
• C. remains constant
• D. change according to the smallest force $\overrightarrow{QR}$

Answer 1

The correct option is C remains constant

$\overrightarrow{F_{net}}=\overrightarrow{F_1}+\overrightarrow{F_2}+\overrightarrow{F_3}=0\left(Trianglelawofvectors\right)\Rightarrow \overrightarrow{a}=0\Rightarrow \overrightarrow{v}=constant$
Velocity will not change.