Demos by PIRA
1M10 Work
1M20 Simple Machines
1M20.11Pulley sets.
1M20.20Block and tackle: Bosun's chair.
1M30 Non-Conservative Forces
1M40 Conservation of Energy
1M40.95The Trebuchet
1M40.10Bowling ball pendulum swings back to nose.
1M40.20Loop the loop: Sphere, hoop, disk rolled down a looped track.
1M40.40.22 rifle fires vertically, bullet lifts small wood cylinder.
1M40.40Ballistic pendulum: Suspended .22 rifle fires into suspended block.
1M40.41Inelastic collisions: Another ballistic pendulum.
1M40.50Maxwell's wheel: Flywheel with axle, supported on strings or stand.