A man with a mass of 100kg is standing on a uniform plank of mass 50kg. The man is standing directly above the right support and the left support is located at the left end of the plank.
a) What is the magnitude of the force that the right support applies to the plank?
b) How far can the man walk to the right of the right support without the plank beginning to tip?
c) At the man's new position, what is the force the right support exerts on the plank?