QQuestionPhysics
QuestionPhysics
Why is the Atwood machine useful in the determination of the acceleration of gravity?
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Step 1: The Atwood machine is a simple apparatus used to demonstrate and study the principles of physics, particularly mechanics.
It consists of a pulley with two masses, m^1 and m^2, suspended from either side. The system is released from rest, and the two masses start moving towards each other due to their difference in weight.
Step 2: When the masses are in motion, the net force acting on the system is given by the difference in the weights of the two masses, i.e., (m^1 - m2)g, where g is the acceleration due to gravity.
This net force causes the acceleration of the system.
Final Answer
The Atwood machine is useful in the determination of the acceleration of gravity because it allows for the direct measurement of the acceleration of a system under the influence of gravity, which can be used to calculate the acceleration due to gravity using the equation a = [(m^1 - m2)g] / (m^1 + m2).
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