A ball of mass $2.0\,\text{kg}$ moves towards a wall with speed $3.0\,\text{m s}^{-1}$, then bounces back with speed $1.0\,\text{m s}^{-1}$. What is the impulse on the wall?
- A$4.0\,\text{N}$
- B$4.0\,\text{N s}$
- C$8.0\,\text{N}$
- D$8.0\,\text{N s}$
Physics 0625 · IGCSE · Momentum