A bicycle slows down with uniform deceleration, changing from a speed of $8\,\text{m s}^{-1}$ to $6\,\text{m s}^{-1}$ while covering a distance of $7\,\text{m}$. The bicycle’s deceleration is constant throughout. What additional distance will the bicycle cover before it stops?
- A7 m
- B9 m
- C16 m
- D21 m