This book consists of statics, kinematics, kinetics, and mechanics of materials. The main contents of the book include statics of particles, reduction of force system, statics of rigid bodies, friction, kinematics of particles, kinematics of rigid bodies in plane motion, resultant motion of particles, kinetics of particles, kinetics of rigid bodies in plane motion, analytical mechanics, stresses and strains, tension and compression, torsion, bending internal forces, bending stresses, bending deformation, stress analysis and strength theories, combined loadings, stability of columns, and energy methods. 《BR》本书由静力学、运动学、动力学和材料力学组成。本书主要内容包括质点静力学、力系简化、刚体静力学、摩擦、质点运动学、刚体平面运动学、质点合成运动、质点动力学、刚体平面动力学、分析力学、应力与应变、拉伸与压缩、扭转、弯曲内力、弯曲应力、弯曲变形、应力分析与强度理论、组合载荷、压杆稳定和能量方法。