A Car Is Traveling with a Constant Speed When the Driver

question 61

Multiple Choice

A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s². The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied?

• A) 10.9 m/s
• B) 14.5 m/s
• C) 10.7 m/s
• D) 21.0 m/s
• E) 15.3 m/s

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Definitions:

Equivalent Ratio

A proportion that demonstrates the equality between two ratios or fractions.

Ratio

A mathematical ratio defining how often one number is included in or includes another.

Unknown Quantity

A variable or value within a mathematical problem or equation that has not yet been determined or identified.

Proportion

A constituent, allotment, or figure regarded in context with its aggregate.