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  1. apireference
  2. basepart

Mass

BasePart

float

Mass is a read-only property that describes the product of a part’s volume and density. It is returned by the BasePart/GetMass|GetMass function.

  • The volume of a part is determined by its BasePart/Size|Size and its Part/Shape|Shape, which varies depending on the kind of BasePart used, such as WedgePart.
  • The density of a part is determined by its BasePart/Material|Material or BasePart/CustomPhysicalProperties|CustomPhysicalProperties, if specified.

A common use of the Mass property is using it to calculate the magnitude of a gravity-counteracting force. Using a BodyForce, apply a upward force equal to the product of a part’s Mass and Workspace/Gravity. This will completely counteract the force of gravity on the part.