Straight and cycloidal inclined paths, with the ball on the cycloidal path always beating the straight one to the bottom.
| 
|
Ball drops from mast of PASCO cart; its motion can be considered relative to the moving cart or the track frame of reference.
Ball shot up from PASCO cart is caught by same; a puzzler to ponder if track is tilted and cart accelerates down (or decelerates up).
Combinations of weights suspended over pulley to show that asymmetry causes acceleration.
Image on the left, of a lightweight plastic pulley with balanced 50 g brass weights, and on the right, the pulley in motion as the unbalanced weights accelerate.
Glider acceleration by an inclined air track or by a falling weight/string attachment; large ballbearing rolling on PASCO track (with strings).
Time lapse image of a ping pong ball rolling down an inclined track. The bottom image has computer generated...
Ball shot horizontally, one dropped vertically; both hit the ground at the same time.
The horizontal and vertical motions of a projectile are independent of each other. So two objects falling under the influence of gravity from the same...
The difference between static and kinetic friction can cause the car to skid when braking.
The automobile is a radio-contolled car (the same one we use for the Reactionary Roadbed). When the front wheels are locked so that they can't turn...
Orbital motion simulated by ball rolling on wooden potential well.
Motion in a central potential is demonstrated by a ball rolling on a circular 1/r curved surface.
The 1/r potential well simulates the gravitational potential...
Allow a board to rotate under the force of gravity and the free end will accelerate at a rate greater than g. Relation between angular acceleration and linear acceleration seems to give free-fall paradox.
If a board, held in a...
The tension force in a rope grows exponentially with the number of turns the rope makes around a pole.
Many people have probably observed that, by wrapping a rope around a post, a person can hold in check a much larger force than would...
