Term
A particle will have an acceleration proportional to the ________ acting on it and in the ________. 

Definition
magnitude of the resultant force; direction of the resultant force Newton's 2nd Law 


Term
The resultant of the forces acting on a particle is equal to the rate of change of __________. 

Definition
linear momentum of the particle 


Term
The sum of moments about O of the forces acting on a particle is equal to ___________ of the particle about O. 

Definition
the rate of change of angular momentum 


Term
Acceleration ______ be evaluated with respect to a __________, one that is not accelerating or rotating 

Definition
must; Newtonian frame of reference 


Term
Linear Momentum of a particle_______. If mass is constant then _________. 

Definition
∑F = m * dv/dt ; ∑F = d/dt (mv) 


Term
If the resultant of all forces is _____ then the particle is in _______ equilibrium. 

Definition


Term
Since ∑F = ma we can rearrange this as
∑F  ma = 0. The negative vector ma is called ______. Now the equation represents _________. 

Definition
inertia vector; dynamic equilibrium 


Term
Solving problems in kinetics of particles(or rigid bodies we need to draw 2 diagrams... 

Definition
FBD (shows all forces acting on the particle)
KD (showing negative of inertia vector, ma) 


Term
_________ or ________ of the particle about O is defined as the cross product of position vector r of the particle and its linear momentum vector L. 

Definition
Moment of linear momentum;
angular momentum H_{o}
H_{o} = r x L = r x mV 


Term
Derivative of angular momentum with respect to time 

Definition


Term
From Newton's second law that the ________ about O of _________ on the particle is equal to the _____________ of the particle about O[image]. 

Definition
sum of the moments; all the forces acting; rate of change of the angular momentum
[image] 


Term
When the only force acting on a particle is directed toward or away from a fixed point O, the particle is said to be..... 

Definition
moving under a central force 


Term
Since the LOA of the central force passes thru point O then the moment due to this force about point O is _______.
[image] 

Definition


Term
Work of the force of gravity 

Definition
W_{1>2} = Weight( y_{2}  y_{1} ) 

