Physics Review Question

Unit: Mechanics
Year: 1997 Question#: 9
Question: A 1,000-kilogram car traveling with a velocity of +20. meters per second decelerates uniformly at 5.0 meters per second2 until it comes to rest. What is the total distance the car travels as it decelerates to rest?

(1 ) 10. m
(2 ) 20. m
(3 ) 40. m
(4 ) 80. m

What is this question really asking?




Explanation by: Chris B.

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Answer 1
10. m

INCORRECT

For this question you must use the formula return to top























Answer 2
20. m

INCORRECT

For this question you must use the formula return to top



























Answer 3
40. m

CORRECT

You correctly used the formula return to top


























Answer 4
80. m

INCORRECT

this answer is twice the correct answer, this is often used to throw off people, but is still the wrong answer. You made a math error by forgetting about the 2 in the formula return to top


























What's this question really asking?

How far does the car go before stopping? return to top

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