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.

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Definitions:

Toluene

A colorless, water-insoluble liquid hydrocarbon with the chemical formula C7H8, used as an industrial solvent.

P-Toluic Acid

A type of benzoic acid derivative where the methyl group is positioned para to the carboxylic acid group.

Toluene

An aromatic hydrocarbon used as an industrial solvent, known for its benzene ring attached to a methyl group.

Alkenes

Unsaturated hydrocarbons containing at least one carbon-carbon double bond, characterized by the general formula CnH2n.