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• ## Discussion

 0 answersPost by sumant nigam on October 6, 2014Hi Mohammed, Dr. Rishi made a mistake. The upward force acting on m2, which is T(2), is defined as (m2g + T1). 0 answersPost by Mohammed Alsadah on July 3, 2013At 4:30Why the upward force on m2 eqials to T1+m(1)g ?Why it is not T1+m(1)g?

### Applications of Newton's Laws, Part 2: Strings and Pulleys

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

• Intro 0:00
• Atwood's Machine 0:19
• Object Attached to a String
• Tension on a String
• Two Objects Attached to a String
• Pulley Fixed to the Ceiling, With Mass M1 , M2
• Applying Newton's 2nd Law to Calculate Acceleration on M1, M2
• One Object on a Horizontal Surface: Frictionless Case 17:36
• Connecting Two Unknowns, Tension and Acceleration
• One Object on a Horizontal Surface: Friction Case 23:57
• Two Objects Attached to a String with a Pulley
• Applying Newton's 2nd Law
• Tension of an Object Pulls to the Right
• One of the Object is Incline : Frictionless Case 32:59
• Sum of Two Forces on Mass M2
• If M1g is Larger Than M2g
• One of the Object is Incline : Friction Case 40:29
• Coefficient of Kinetic Friction
• Net Force Acting on M2
• Extra Example 1: Two Masses on Two Strings
• Extra Example 2: Three Objects on Rough Surface
• Extra Example 3: Acceleration of a Block