Momentum

= Momentum =

Momentum is defined as p=mv (momentum = mass x velocity) It is a vector, the sign/direction is important, unlike energy A change in momentum is an impulse which is defined as F∆t=∆p (Force x time elapsed = impulse(change in momentum)) Momentum is conserved in all collisions Types of collisions: No is perfectly either one, always somewhere in between Easy formula for a perfectly elastic collision -> -(va-vb=v'b+v'a) Interacts with Kinematics (1D Kinematics and 2D Kinematics)
 * Linear Momentum**
 * Elastic->kinetic energy is conserved
 * Inelastic-> kinetic energy not conserved -> objects stick together

Sample problem Follows p=p' (no external impulse to the system)

More help on um/Momentum ||
 * http://www.course-notes.org/Physics/Physics_Overview/Energy_and_Moment

The one point that moves in the same path that a particle would move had it of been subjected to the same force Position relative to an origin x=(maxa + mbxb)/(ma+mb)
 * Center of Mass**



Ben's rotational momentum part **Rotation**
 * Angular Moment**