A student is finding the position of the centre of gravity of a piece of card. The diagram displays the equipment available. It is not drawn to scale. Which item of equipment is unnecessary?
- Apencil
- Bpin
- Cweight on a thin string
- Dstop-watch
Physics 0625 · IGCSE · Forces
A student is finding the position of the centre of gravity of a piece of card. The diagram displays the equipment available. It is not drawn to scale. Which item of equipment is unnecessary?