Three forces are acting on a particle of mass m initially in equilibrium. If the first two forces (R1 and R2) are perpendicular to each other and suddenly the third force R3 is removed, then the acceleration of the particle is :

\(\frac{R_3}{m}\) \(\frac{R_1 + R_2}{m}\) \(\frac{R_1 - R_2}{m}\) \(\frac{R_1}{m}\)

\(\frac{R_3}{m}\)

Acceleration : a = \(\frac{\sqrt{R_1^2 + R_2^2}}{m}\) a = \(\frac{R_3}{m}\)