A student investigates how the starting height of a model car rolling down a ramp affects its speed at the bottom.
Key data from the experiment is recorded in the table below:
| Release height / m\text{m}m | Average speed / ms−1\text{ms}^{-1}ms−1 |
|---|---|
| 0.05 | 0.40 |
| 0.10 | 0.57 |
| 0.15 | 0.69 |
| 0.20 | 0.80 |
| 0.25 | 0.89 |
| 0.30 | 0.98 |
The model car has a mass of 750 g.
Calculate the kinetic energy of the car when it is released from a starting height of 0.20 m.