The hand brake is on.
The handbrake is used to stop a stationary car rolling downhill. The transmission can also stop a car from moving when parked.
When a car is parked, the parking brake is engaged, preventing the wheels from moving. In addition, the transmission is usually in "Park" mode, which locks the transmission, further preventing movement. These mechanisms work together to keep the car stationary when parked.
The velocity of a parked car is zero because it is not in motion. Velocity is a vector quantity that includes both speed and direction; since the car is stationary, it has no speed and therefore no velocity.
The car in motion is ALWAYS at fault when it hits a stationary vehicle.
Stationary is an adjective: 'I parked my car on a steep hill and made sure that it was stationary before I walked away.'
don't use them stay parked
When a car is parked on a steep hill, it remains stationary primarily due to the force of gravity and the engagement of the parking brake. The parking brake, which typically engages the rear wheels, creates friction that prevents the car from rolling downhill. Additionally, if the car is in gear, the engine's resistance can further help keep it in place. Together, these factors ensure that the vehicle does not move while parked.
A stationary car parked on the side of the road does not have kinetic energy, as kinetic energy is the energy of motion and the car is not moving.
Animal
A stationary car parked in a parking lot and a book sitting on a table are examples of objects remaining at rest.
I hope you got a police report. In any case, whether or not you were parked legally is not relevant. A driver is responsible for damages caused when hitting any stationary object... like a parked car. Just offer to take her to small claims court, or contact a lawyer. Most lawyers would just consider that one fun.
As long as the parked vehicle is parked properly and not illegally parked in any manner, then the vehicle that rear-ended the parked car is at fault. Now if the parked car is sitting illegally (such as double parked or parked in a no parking zone, etc.) then the parked car is at fault or even both the parked car AND the car that hits it are BOTH at fault.