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Physics (Mechanics) Formulas
Basic Mechanical physics formulas
14
Physics
Undergraduate 1
12/14/2012
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Term
Angular Momentum
 Definition

L = r x p  or  L = r x mv

 

x = vector cross product

 

 L = I ω


Get Torque from derivative of Angular momentum: 

 

dL/dt = Τ
Term
Linear Momentum
 Definition
P = mv
Term
Torque
 Definition
Τ (tau) = r x F
Term
Instantaneous Linear Velocity (speed)
 Definition
v = dx/dt
Term
Average Linear Velocity (speed)
 Definition
v = Δx/Δt
Term
Angular velocity
 Definition
ω(omega)= v/r
Term
Angular Power
 Definition

 

P = Torque • ω 

 

• = dot product 

 
Term
Linear Power
 Definition
P = F • v
Term
Momentum
 Definition
p = mv
Term
Impulse
 Definition

J = F/Δt

 

Impulse is the change in Force over time

J = dF/dt
Term
Center of Mass
 Definition

rcm = ( Σ mi ri ) / ( Σ mi )

 
Term
Bridge equation for linear & angular
 Definition
v = r ω
Term
angular tangential acceleration
 Definition
atan = r ω
Term
Moment of Inertia
 Definition
I = m r2
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