Specific force

Specific force (SF) is a mass-specific quantity defined as the quotient of force per unit mass. : \mathrm{SF} = F / m It is a physical quantity of kind acceleration, with dimension of length per time squared ( ) and SI units of metre per second squared (m·s −2 ). It is normally applied to forces other than gravity, to emulate the relationship between gravitational acceleration and gravitational force. It can also be called mass-specific weight (weight per unit mass), as the weight of an object is equal to the magnitude of the gravity force acting on it. The g-force is an instance of specific force measured in units of the standard gravity (g) instead of m/s², i.e., in multiples of g (e.g., "3 g").

Specific force (SF) is a mass-specific quantity defined as the quotient of force per unit mass. \mathrm{SF} = F / m It is a physical quantity of kind acceleration, with dimension of length per time squared ( ) and SI units of metre per second squared (m·s −2 ). It is normally applied to forces other than gravity, to emulate the relationship between gravitational acceleration and gravitational force. It can also be called mass-specific weight (weight per unit mass), as the weight of an object is equal to the magnitude of the gravity force acting on it. The g-force is an instance of specific force measured in units of the standard gravity (g) instead of m/s², i.e., in multiples of g (e.g., "3 g"). ==Hydraulics== In open channel hydraulics, specific force ( F_s ) has a different meaning: F_s = \frac{Q^2}{gA} + zA where Q is the discharge, g is the acceleration due to gravity, A is the cross-sectional area of flow, and z is the depth of the centroid of flow area A. ==See also== Acceleration Proper acceleration

Text derived from https://en.wikipedia.org/w/index.php?oldid=1361603001 under CC BY-SA 4.0; modifications have been made.