This course is considered the second entrance to mechanics after statics, and in this course the focus is on the force acting on a body, and the change that it causes on the body from a change in motion, regardless of the resulting change in the shape and size of the body, as well as studying equilibrium, movement in one dimension, In an inclined plane, curvilinear motion, uniform circular motion, Newton's laws, gravitational force and centripetal force, friction, collision, rebound, work, power, potential energy, conservative energy and the law of conservation of energy.