三级英语辅导
The general principles of dynamics are rules which demonstrate a relationship between the motions of bodies and the forces which produce those motions, based in large part on the work of his predecessors. Sir Isaac Newton deduced three laws of dynamics which he published in 1687 in his famous Principia.
The general principles of dynamics are rules which demonstrate a relationship between the motions of bodies and the forces which produce those motions, based in large part on the work of his predecessors. Sir Isaac Newton deduced three laws of dynamics which he published in 1687 in his famous Principia.