Abstract
Friction force acts between the objects which are going to contact mutually and exercise relatively. Although the problem of this friction is very important on engineering, the action resulting from the fricative characteristic and friction is difficult theoretical to treat, dynamic action, and there is little research of the action especially under impact load. This report, in order to investigate the friction action of the object under impact load, experiment equipment is designed, it asks as a friction coefficient of the object to a impact, it compares with the maximum stillness friction coefficient.
