Assumptions - Atwood's Pulley (massless pulley)

Atwood's Pulley (massless pulley) simulates the motion of two masses connected by an ideal string passing over a massless pulley in order to explore the concepts of mechanical energy, energy conservation, and energy transformation.

For Atwood's Pulley (massless pulley), it is assumed that:

  1. The string connecting the masses is massless and does not stretch.
  2. The string does not slip on the pulley.
  3. There are no external dissipative forces (air resistance, friction in the pulley, etc.) present.

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Last Updated: June 16, 2004