Lesson 1.2 - Connected Objects
VIDEO LESSON (26:08 min)
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SOLUTION:
SOLUTION:
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ATWOOD MACHINE
Two different masses connected by a string that passes over a pulley. This reduces the apparent effect of gravity by having a counter weight that slows down the system allowing for more accurate measurements.
TWO WAYS TO LOOK AT THE PROBLEM
Viewpoint 1: One Object
Viewpoint 2: Two Separate Objects
EXAMPLE PROBLEM #1
An Atwood machine consisting of a mass, \( m_2 \), of \( 175 kg \) and a mass, \( m_1 \), of \( 75 kg \). What is the acceleration of the masses and the tension in the rope.
SOLUTION:
EXAMPLE PROBLEM #2
A mass, \( m_2 \), is suspended by a string that is connected to a mass, \( m_1 \), on a table by means of a pulley. If \( m_1=3.0kg \) and \( m_2=5.0 kg \), what is the acceleration of each block if the board is frictionless?SOLUTION:
EXAMPLE PROBLEM #3
What if the coefficient of kinetic friction between the board and mass m is 0.1?SOLUTION:
Last modified: Thursday, 8 May 2025, 4:55 PM