Answer: Salt and A moving baseball
Explanation: Just got 100 on the quiz.
You are at rest with respect to the car.
You are in motion with respect to the School.
When an object moves its length contracts in the direction of motion. The faster it moves the shorter it gets in the direction of motion.
The object in this question moves and then stops moving. So it's length first contracts and then expands to its original length when the motion stops.
The speed doesn't have to be anywhere near the speed of light. When the object moves its length contracts no matter how fast or slow it's moving.