Determine the position rP of the center of percussion P of the 10-lb slender bar. (See Pro...

Determine the position rP of the center of percussion P of the 10-lb slender bar. (See Problem.) What is the horizontal component of force that the pin at A exerts on the bar when it is struck at P with a force of F = 20 lb?

Problem

The kinetic diagram representing the general rotational motion of a rigid body about a fixed axis passing through O is shown in the figure. Show that IGα may be eliminated by moving the vectors m(aG)tand m(aG)nto point P, located a distance rGP = k2G/rOG from the center of mass G of the body. Here kG represents the radius of gyration of the body about an axis passing through G. The point P is called the center of percussion of the body.