A Car Having a Total Mass of 2250 Kg and Traveling

question 82

Multiple Choice

A car having a total mass of 2250 kg and traveling at 72 km/h smashes into a tree.The car is stopped in 0.25 s.The driver of the car is not held in place by a seat belt or any other restraining device.Just after the impact but before the driver hits any part of the car,the acceleration of the driver is

• A)80 m/s² toward the tree.
• B)zero with respect to the tree.
• C)80 m/s² away from the tree.
• D)1.8 \(\times\) 10²m/s² with respect to the car.
• E)37 m/s² away from the tree.

---

Definitions:

Restlessness

An uneasy or impatient state where one cannot remain at rest due to anxiety, boredom, or other emotional or physical factors.

Working Memory

Short-term storage of information being actively processed.

Procedural Memory

A type of long-term memory that enables people to perform tasks without conscious awareness of the learned knowledge, such as riding a bike or tying shoelaces.

Neurofibrillary Tangles

Twisted masses of protein fibers found in brains of persons with Alzheimer’s disease.