Quantities Symbols and Dimensions

Quantity	Symbol	Dimensions		Quantity	Symbol	Dimensions
Mass	m	M		Mass /Unit Area	m/A 2	ML -2
Length	l	L		Mass moment	ml	ML
Time	t	T		Moment of Inertia	I	ML 2
Temperature	T	θ		-	-	-
Velocity	u	LT -1		Pressure /Stress	p /σ	ML -1T -2
Acceleration	a	LT -2		Strain	τ	M 0L 0T 0
Momentum/Impulse	mv	MLT -1		Elastic Modulus	E	ML -1T -2
Force	F	MLT -2		Flexural Rigidity	EI	ML 3T -2
Energy - Work	W	ML 2T -2		Shear Modulus	G	ML -1T -2
Power	P	ML 2T -3		Torsional rigidity	GJ	ML 3T -2
Moment of Force	M	ML 2T -2		Stiffness	k	MT -2
Angular momentum	-	ML 2T -1		Angular stiffness	T/η	ML 2T -2
Angle	η	M 0L 0T 0		Flexibiity	1/k	M -1T 2
Angular Velocity	ω	T -1		Vorticity	-	T -1
Angular acceleration	α	T -2		Circulation	-	L 2T -1
Area	A	L 2		Viscosity	μ	ML -1T -1
Volume	V	L 3		Kinematic Viscosity	τ	L 2T -1
First Moment of Area	Ar	L 3		Diffusivity	-	L 2T -1
Second Moment of Area	I	L 4		Friction coefficient	f /μ	M 0L 0T 0
Density	ρ	ML -3		Restitution coefficient		M 0L 0T 0
Specific heat- Constant Pressure	C p	L 2 T -2 θ -1		Specific heat- Constant volume	C v	L 2 T -2 θ -1

Note: a is identified as the local sonic velocity, with dimensions L .T ^-1