# A classical mechanics problem by Veer Rangan

Two solid cylinders $$P$$ and $$Q$$ of same mass and same radius start rolling down a fixed inclined plane from the same height at the same time. Cylinder $$P$$ has most of its mass concentrated near its surface, while $$Q$$ has most of its mass concentrated near the axis. Which statement(s) is (are) correct ?

(A) Both cylinders $$P$$ and $$Q$$ reach the ground at the same time.
(B) Cylinder $$P$$ has larger linear acceleration than cylinder $$Q$$.
(C) Both cylinders reach the ground with same translational kinetic energy.
(D) Cylinder Q reaches the ground with larger angular speed.

×