This old PSSC instrument 'Collision in 2 Dimensions' is still used successfully. It clamps to a bench and allows different mass balls to collide at angles to calculate the laws of dynamics and mass. The point that the balls reach the floor is shown by carbon paper leaving a mark. A plumb bob from below the target ball to the floor provides the zero point on the floor for measurements of distances and angles.

Supplied with new type of unbreakable track for ball acceleration.

Contents of Kit:

1 piece steel base and ball support arrangement to clamp to the table top, carries plastic track.

1 piece plastic track to curves and fit steel base.

2 pieces steel ball 16 mm diameter.

1 piece glass ball 16mm.

1 piece plumb line to find position on floor directly below ball support arrangement.

1 piece screw eye to hang from plumb line.