A solid disk is speeding up while rotating about its center
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A solid disk is speeding up while rotating about its center. Point P is on the rim of the disk at radius 0.20m, and point Q is halfway between the center and the rim at radius 0.10m. At a particular instant both points share the same angular acceleration. Which statement best compares the magnitudes of their tangential accelerations?
(a) Points P and Q have equal tangential accelerations.
(b) Point P’s tangential acceleration is twice that of point Q.
(c) Point P’s tangential acceleration is half that of point Q.
(d) Point P’s tangential acceleration is four times that of point Q.