Physics I: Classical Mechanics Lecture 7 (approx. 50 minutes) contains information on several topics.

  • To learn about Weight and Free Fall, watch the lecture from 00:00 to 09:16.
  • To learn about Masses on a Frictionless Pulley, watch the lecture from 09:16 to 15:40.
  • To learn about Interpretation of Masses on a Pulley, watch the lecture from 15:40 to 20:27.
  • To learn about Tension in Revolving String, watch the lecture from 20:27 to 26:53.
  • To learn about Weightlessness During Free-Fall, watch the lecture from 26:53 to 31:09.
  • To learn about Weightless Mass in Free-fall, watch the lecture from 31:09 to 39:28.
Course: 8.01 Physics I: Classical Mechanics, Fall 1999

Instructor: Prof. Walter Lewin

To begin the lecture, click HERE.

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