document.write( "Question 1038213: An object is projected upwards with a velocity of 100 m/s . it will strike ground about: \n" ); document.write( "
Algebra.Com's Answer #652926 by Alan3354(69443)\"\" \"About 
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An object is projected upwards with a velocity of 100 m/s . it will strike ground about:
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\n" ); document.write( "For objects on Earth using metric units, g = 5 m/sec/sec is often used for Earth's gravity.
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\n" ); document.write( "v = a*t
\n" ); document.write( "100 = 5*t
\n" ); document.write( "t = 20 seconds ascending, and 20 seconds descending
\n" ); document.write( "--> 40 seconds from launch to impact
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