A particle moving with velocity ν is acted by three forces shown by the vector triangle PQR. The velocity of the particle will [NEET 2019]

As the three forces are represented by three sides of a triangle taken in order, then they will be in equilibrium.⇒  Fnet =FPQ+FQR+FRP=0Fnet =m×a=mdvdt=0⇒  dvdt=0 or v= constant So, the velocity of particle remain constant.