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Quandaries & Queries
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 Topic: acceleration due to gravity
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 A penny is thrown from the top of a building 2018-03-16 From Zoraida:A penny is thrown from the top of a 26.7-meter building and hits the ground 3.39 seconds after it was thrown. The penny reached its maximum height above the ground 0.89 seconds after it was thrown. a. Define a quadratic function, h, that expresses the height of the penny above the ground (measured in meters) as a function of the number of seconds elapsed since the penny was thrown, t. b. What is the maximum height of the penny above the ground?Answered by Penny Nom. A falling object 2009-02-01 From Tamara:We drop an object from rest (i.e. its initial spped is zero. It is falling freely toward the ground. What will be its speed after 5 seconds of falling?Answered by Penny Nom. g on Mars 2004-01-22 From RC:To measure the acceleration on Mars an object is dropped from a height of 160m. It takes 10s for this object to hit the ground. What is the value for g on Mars?gAnswered by Penny Nom.

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