Question

A thin rod of length L is vertically straight on horizontal floor. This rod falls freely to one side without slipping of its bottom. The linear velocity of centre of rod when its top end touches floor is

Answer 1

Answer:

1. At highest point kinetic energy=0
2. At lowest point potential energy =0
3. total energy at highest =total energy at lowest
4. mgL/2=1/2Iomega
5. omega=root 3g/L
6. V=omega*L/2
7. V=root 3gL/2