# For a particle in uniform circular motion the acceleration a at a point 𝑃(𝑅, 𝜃) on the circle of the radius R is (here 𝜃 is measured from the 𝑥 −axis)

Question : For a particle in uniform circular motion the acceleration a at a point 𝑃(𝑅, 𝜃) on the circle of the radius R is (here 𝜃 is measured from the 𝑥 −axis)

(A) $\dfrac{-v^{2}}{R}\cos \theta \widehat{i}+\dfrac{v^{2}}{R}\sin \theta \widehat{j}$

(B) $\dfrac{-v^{2}}{R}\sin \theta \widehat{i}+\dfrac{v^{2}}{R}\cos \theta \widehat{j}$

(C) $\dfrac{-v^{2}}{R}\cos \theta \widehat{i}-\dfrac{v^{2}}{R}\sin \theta \widehat{j}$

(D) $-\dfrac{v^{2}}{R}\widehat{i}+\dfrac{v^{2}}{R}\widehat{j}$