1) Two solid cylinders P and Q of the 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 transiational kinetic energy D) Cylinder Q reaches the ground with larger angular speed Answer: Option DExplanation:IP>IQ In case of pure rolling, a=gsinθ1+I/mR2 aQ>ap as its moment of inertia is less. Therefore, Q reaches first with more linear speed and more translational kinetic energy. Further, ω=vR or ω∝V ∴ ωQ>ωP as vp>vQ