[lifes3ps]

going over classical physics for my physics GRE and im forgetting the easy stuff.

problem 1: Rod length L mass M has 1 end anchored to ground, the top is allowed to freefall, whats the speed of the tip when hits ground?

problem 2: 7 pennies (uniform, equal disks) are arranged in a hexagonal planar pattern. whats the moment of inertia around the axis perpendicular to the plane of the pennies, thru the center penny

i have the answers as its from a gre test book but any help helpful

thanks