2026 · Q116
For a particle in uniform circular motion (radius R and angular velocity ω), the magnitude and direction of acceleration, respectively are
general-sciencephysics-mechanics
- AωR, along the radius outward
- BωR, towards the centre of the circle
- Cω2R, towards the centre of the circle
- Dω3R, along the linear velocity
Explanation
For uniform circular motion the acceleration is the centripetal acceleration of magnitude ω²R (v²/R), directed radially inward toward the centre of the circle. It is not ωR, not outward, and not ω³R along the velocity. Hence option C is correct.