Further mechanics: Momentum and Circular motion condensed notes

Collisions



-
Collisions where Ex is conserved
elastic collisions
-

Therefore Initial Ex = Final EK
=
collisions where EK is not conserved
Inelastic collisions
-


Therefore Init Er # Final EK

Conservation of linear momentum -
The total initial momentum before collision
a is equal to t
a collision in a closed
system
Closed No external
System forces acting the
-
are on




Impulse -
F = Fat =
Ap




Decomposing Momentum
-Pinitiaa = V



Angle of deflection -




↳ normally very small