Term
Check on particle changing direction 

Definition
Happens at V=0. If velocity changes signs over amount of time. 


Term
How to find time when particle changes direction 

Definition
Finds "zeroes" of velocity equation 


Term
Determine relative velocity & position w/ pulleys 

Definition
Find relation with overall length = different individual lengths 


Term

Definition
Tangential & Normal Coordinates 


Term
Polar/Cylindrical Coordinates 

Definition
TranverseTheta, RadialR 


Term
Direction of Tangential & Normal (Parabolic, Circle, Straight) 

Definition
Par&CircleNormal towards center of radius, tangential in direction travel...Straighteither up or down... Tangstraight along path direction 


Term
Radial & Tranverse direct 

Definition
Er need to be in direction R from origin...tranverse up away from surface(counter 90 from Er) 


Term
Finding acc. w/speed constant on circle 

Definition
use 2nd comp. > V^2/p * en only ....other is zero 


Term
Get velocity after certain time? 

Definition


Term
Want Normal force on nonstraight path 

Definition
Use only Fn=m*v^2/p component 


Term
Using R&Theta comp, have 1 that = 0 

Definition
Guess an integral & to get derivative that=0 to get constant.(Q2#3) 


Term

Definition
Work = integral F*dr....=T2T1 


Term
WorkEnergy for U(12) take what into account? 

Definition
Work of Gravity & Friction!(and spring if there is one) 


Term
WorkEnergy alternate solutions? what changes 

Definition
Placement of T1, if have velocity it exists, if from rest=0 


Term
With Work from spring(.5ks^2) involved what use to get solution 

Definition
Quadratic formula!Use only positive roots 


Term
ImpulseMomentum >what need to conserve? 

Definition
No external forces on the collision 


Term
Central vs. Oblique Impact 

Definition
direction of motion of the mass centers of the two colliding particles is along a line of impact vs. motion of one or both of the particles is at an angle with the line of impact 


Term
Ang. Momentum conservation equation? 

Definition


Term
Ang.Mom the Mo is summation of? 

Definition
Forces cross radius in each direction (er,etheta,k) 


Term

Definition
If one of i or j calcs gives w=0 then there is slip 


Term

Definition
If given Velo & acc center curvaturePath...Polarfor anything with change in theta 


Term

Definition
acc. relative *(unit vector) 


Term
Steps needed when asked for ang.acc. w/rotating reference frames 

Definition
Use longest equation...solve for every component first, drop a^rel, separate into components plug & chug 


Term
Rotation of Fixed body about fixed axis what need? 

Definition
Force in normal & tangential. Moment about G(center gravity) 


Term
Radius Gyration what equation use 

Definition
Ig=mk^2 ...radius gyration is k 


Term
What cancels in rotational motion when start from rest? 

Definition


Term
Rolling, w/no slip...use omega & r to get ? 

Definition


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Definition

