A circular disc is rotating with constant angular velocity ω about an axis that passes through the centre. A particle 'P' is kept at a distance of 2m from the centre and another particle 'Q' at a distance of 3m from the centre. Which of these will have higher centripetal acceleration?

Options:

A . P

B . Q

C . both have equal

D . can't say until value of ω is given

Answer: Option B : B If a particle goes in a circle with constant ω then it has a centripetal acceleration given by ω2R since ω is constant for both particles. So the acceleration depends on R ∵RQ>RP ⇒ω2RQ>ω2RP So particle q will have higher centripetal acceleration.

## Submit Solution

Your email address will not be published. Required fields are marked *