Hoop thrown forward rolls backwards

• A+30+70

Linear momentum is trasferred to angular momentum via the external force of static friction of the hoop rolling. The rolling continues and rotational momentum is transferred to linear momentum towards the instructor.

Related Demos

---

A+30+0 Minor's apparatus: Movable discs rotated by falling weight. A+30+5 Maxwell's wheel: Flywheel with axle, supported on strings or stand. A+30+10 Rotational inertia device: Sliding weights on rotating rod. A+30+15 Rotating chair with dumbbells or weighted bicycle wheel. A+30+20 Maxwell's top, has adjustable center of gravity. A+30+25 Large conical aluminum top. A+30+30 Gyroscopes; various. A+30+35 Sire's Polytrope. A+30+40 Film: "Conservation laws in zero G", sound, 14 min.. A+30+45 Large gyroscope in a suitcase. A+30+50 Rotating Platform for Outreach A+30+55 Falling coffee cup is arrested by friction A+30+60 Spinning Bicycle Wheel Stays Upright. A+30+65 Bike with one foot long trail