A Car Is 200 M from a Stop Sign and Traveling

question 101

Multiple Choice

A car is 200 m from a stop sign and traveling toward the sign at 40.0 m/s. If the driver realizes they must stop the car at this time. It takes 0.20 s for the driver to apply the brakes. What must the constant acceleration of the car be after the brakes are applied so that the car would come to rest at the stop sign?

• A)2.89 m/s²
• B)3.89 m/s²
• C)4.17 m/s²
• D)3.42 m/s²
• E)2.08 m/s²

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Definitions:

Arachnid

Group of arthropods that includes spiders and scorpions.

Cephalothorax

A body region found in arachnids and some crustaceans, where the head and thorax are fused into one unit.

Book Gills

Respiratory organs found in horseshoe crabs and some arachnids, consisting of leaf-like structures stacked on top of each other.

Earthworms

Terrestrial invertebrates that belong to the phylum Annelida, known for their role in aerating and enriching soil.