International Experiments In Relative Motion
Cute video of a Japanese demonstration to show relative motion. Get a mini-pickup to go 100 kph, and mount a ball-launcher on the back, that can shoot a ball out the back at 100 kph. Film it and confirm the Galilean transformation. They would have gotten bonus points if they could have launched the ball with no spin on it
I love how the driver who is safely inside the truck is wearing a helmet, but the guy out in the open on the bed of the truck (a truck moving around a race track at 100kph) is not. 😀