3 articles trouvés pour ce sujet.
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A penny is thrown from the top of a building |
2018-03-16 |
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Zoraida pose la question :
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?
Penny Nom lui répond. |
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A falling object |
2009-02-01 |
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Tamara pose la question :
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?
Penny Nom lui répond. |
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g on Mars |
2004-01-22 |
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RC pose la question :
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?g
Penny Nom lui répond. |
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