$$ PE = mgh $$
where:
- \( PE \) is the potential energy in joules (J)
- \( m \) is the mass of the car in kilograms (kg)
- \( g \) is the acceleration due to gravity \( (9.8 m/s^2) \)
- \( h \) is the height of the hill in meters (m)
Substituting the given values, we get:
$$ PE = (2000 kg)(9.8 m/s^2)(30 m) = 588000 J $$
Therefore, the potential energy of the car is 588000 J.