Which quantity, together with its unit, is correct?
- Aacceleration of a bicycle = $1.4\,\text{m s}^{-1}$
- Belectric current in a lamp = $0.25\,\text{A s}^{-1}$
- Celectric potential difference across a battery = $8.0\,\text{J C}^{-1}$
- Dkinetic energy of a car = $4500\,\text{N m}^{-1}$