Question

A uniform rod is kept vertically on a horizontally smooth surface at a point O. IF it is rotated slightly and released, it falls down on the horizontal surface. The lower end will remain
A. at `O`
B. at a distance less than `L//2` from `O`
C. at a distance `L//2` from `O`
D. at a distance larger than `L//2` from `O`

Answer 1

The center of mass of rod will fall in vertical straight line.