We've bought two skateboards for the Physics Department to help us to demonstrate Newton's 3rd Law and the conservation of linear momentum
. If you'd been in Silloth this afternoon you'd have seen Mrs B and me having our first ever goes on a skateboard. Deprived childhoods, I'm afraid. I want to learn to skateboard...can anyone help? The picture shows the bottom of one of the boards: 1. Another mess up with mass and weight. Oh dear. 2. I'm 65kg. This surely can't be right.