If you are hit in the face by a cricket ball, would it be more painful at a distance of 50 centimetres from the thrower's hand, or 5 metres? To put it another way, at what point does the ball start decelerating?
I work at Lord's Cricket Ground and a colleague was asked by a child 'Has anyone ever hit a ball so hard its caught fire'. Fantastic question, and although we said no, I thought it might be interesting to find out at what speed would a cricket have to hit to make this happen?