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# Introduction to Classical Mechanics

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Classical Mechanics – Edexcel (9PH0)

In this course, Professor Derek Raine (University of Leicester) explores classical mechanics, in particular Newton’s Three Laws of Motion, covering Topics 17, 20, and 21 in the Pearson Edexcel Level 3 Advanced GCE in Physics (9PH0) Specification for A Level. In the first mini-lecture, we give an introduction to classical mechanics, discussing Newton’s motivations for developing this theory and learn about inertial states. In the second mini-lecture, we learn about Newton’s first law of motion (Topic 17). In the third mini-lecture, we explore Newton’s second law of motion (Topic 17). In the fourth mini-lecture, we discuss Newton’s third law of motion (Topic 20). In the fifth mini-lecture, we explore momentum as well as elastic and inelastic collisions (Topic 21).

Introduction to Classical Mechanics

In this mini-lecture, we introduce classical mechanics, focusing in particular on: (i) classical mechanics vs classical dynamics; (ii) Isaac Newton’s motivations for contributing to this area of physics; (iii) previous understandings of motion before classical mechanics was developed; and (iv) inertial states.

#### Cite this Lecture

**APA style**

Raine,
D.
(2023, August 24).
*Classical Mechanics – Edexcel (9PH0) - Introduction to Classical Mechanics* [Video]. MASSOLIT. https://massolit.io/courses/classical-mechanics-edexcel-9ph0/newton-s-third-law-of-motion-20

**MLA style**

Raine,
D.
"Classical Mechanics – Edexcel (9PH0) – Introduction to Classical Mechanics." *MASSOLIT*, uploaded by MASSOLIT,
24 Aug 2023,
https://massolit.io/courses/classical-mechanics-edexcel-9ph0/newton-s-third-law-of-motion-20