document.write( "Question 1151017: How far will an object fall in 5 seconds if it is thrown downward at an initial velocity of 30m/sec from a height of 200 m? \n" ); document.write( "

Algebra.Com's Answer #772594 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The general formula to find the distance for such a move is\r\n" );
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document.write( "    d(t) =  + ,\r\n" );
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document.write( "where \"g\" is the free fall acceleration  (9.81 m^2/s; sometimes the value of 10 m^2/s is used), and  is the initial velocity\r\n" );
document.write( "(30 m/s, in this case).\r\n" );
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document.write( "So, substitute the numbers into the formula and calculate\r\n" );
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document.write( "    d(5) =  + 30*5 = 275 meters.\r\n" );
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document.write( "Compare it with the given height of 200 meters.\r\n" );
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document.write( "It should be clear to you that the body will reach the Earth surface for lesser time than 5 seconds.\r\n" );
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document.write( "So, \"how far\" in this case is 200 m.    ANSWER\r\n" );
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