Ball on a tether released (horizontal plane)

Circular motion: ball on tether released (vertical plane)

Circular motion: horizontal ball in a hoop (Tim holding)

Circular motion: vertical ball in a hoop (clamped)

Circular motion: vertical ball in hoop (Tim holding)

Collisions: inelastic collision top view

Collisions: inelastic little spin

Collisions: large mass into small mass from above

Collisions: oblique collision

Collisions: rebound (v-t)

Collision: small mass into large mass

Collisions: equal mass straight (x-t)

Kinetic theory: box top view

Kinetic theory: molecule SHM from above

Kinetic theory: molecule SHM from the side