* Gravity and Mass: The force of gravity between two objects is directly proportional to the product of their masses. The greater the mass, the stronger the gravitational pull.
* Car vs. Human: A typical car weighs significantly more than a human being. Even a large book house wouldn't approach the weight of a car.
Conclusion: Since the car has a much greater mass than a human or a book house, it will experience a stronger gravitational force from Earth.
