A moving object is stopped by a frictional force of $30\,\text{N}$ acting over a distance of $5.0\,\text{m}$. The diagram shows the energy transferred between stores (from the store of kinetic energy to the store of internal energy). Calculate the energy transferred by this force and state the way in which the energy is transferred.
- A$6.0\,\text{J}$, by electrical working
- B$6.0\,\text{J}$, by mechanical working
- C$150\,\text{J}$, by electrical working
- D$150\,\text{J}$, by mechanical working