Amazon.com : PowerNet Rolling Baseball Coach Bag Caddy | Holds Up to Two Ball Buckets w/Padded Seats | Telescoping Pull Handle Rugged Wheels for Any Surface | Bucket Organizer for Softball :
How to Calculate Braking Distances
A Novel Analytical Method to Calculate Wheel-Rail Tangential Forces and Validation on a Scaled Roller-Rig
VRS DirectForce Pro Wheel Base Settings
PDF) Measuring the wheel-rail forces of a roller coaster