We are offering Fletcher Trolley. It is a wheeled cart which rolls down a track. It is common in the motion unit to use this device to analyze the relationship between displacement, position, velocity and acceleration. A ticker tape timer is a device which vibrates and can place a black mark on a piece of paper once every 1/60th of a second (60 dots per second). The constancy of the device is perfect for relating time and distance, position and displacement.
- Material: Hard wood
- Paper marking time: 1/60th ms