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saw5 [17]
3 years ago
13

a falling stone is at a certain instant 230 feet above the ground. 3 seconds later it is only 14 feet above. From what height wa

s it dropped?
Mathematics
2 answers:
vazorg [7]3 years ago
4 0
The falling stone is a certain instant 230 feet above the ground. 3 seconds later it is only 14 feet above. The height that it was dropped is 32 feet. The equation for the answer is; 

<span>16<span>t2</span>+<span>h0</span>=230</span> <span>−16(t+3<span>)2</span>+<span>h0</span>=14</span>


umka2103 [35]3 years ago
3 0
A falling object has the following height function due to acceleration of gravity (32 ft/s^2) <span>h(t)=−16<span>t2</span>+<span>v0</span>t+<span>h0
</span></span>since object was dropped assume initial velocity of 0 plug in 2 given points to obtain system of 2 equations solve for t and initial height <span>−16<span>t2</span>+<span>h0</span>=230</span> <span><span>−16(t+3<span>)2</span>+<span>h0</span>=14</span></span>
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