Summary: The book "College Physics" by D. B. Sinha covers topics such as the angle of friction, determination of coefficient of friction, laws of kinetic and static friction, equilibrium on inclined planes, machines, the principle of work, moment of inertia, rotation and energy of rotation, angular acceleration, torque, kinetic energy of rolling objects, viscosity, buoyancy correction, and gravitational potential. It also discusses topics like simple harmonic motion, frequency, phase, and different kinds of friction such as static, kinetic, and rolling. Additionally, the book explores concepts like speed, velocity, acceleration, equations of motion, and the laws of motion. The frequency of vibrations, time period of torsional oscillation, and determination of the velocity of sound are also covered in the book through various experiments and theoretical concepts. Throughout the text, practical applications of physics principles are emphasized, with detailed explanations and examples provided for each topic.