JEE Main2010PhysicsRotational MotionActual
For a particle in uniform circular motion the acceleration a at a point P(R, ) on the circle of radius R is (here is measured from the x -axis)
Options
- A- v^2 R i + v^2 R j
- B- v^2 R i + v^2 R j
- C- v^2 R i - v^2 R j
- Dv^2 R i + v^2 R j
Correct answer
C. - v^2 R i - v^2 R j
Step-by-step solution
For a particle in uniform circular motion, aligned & a = v ^2 R towards centre of circle & a = v ^2 R (- i - j ) & or a =- v^2 R i - v^2 R j & aligned