document.write( "Question 333723: A projectile is fired from the ground with an upward speed of 245m/s. After how many seconds will it return to the ground? h= vt- 4.9t^2 \n" ); document.write( "
Algebra.Com's Answer #239144 by jim_thompson5910(35256)\"\" \"About 
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Hint: In this case, \"v=245\" which means that the equation is \"h=245t-4.9t%5E2\". From here, plug in h=0 to get \"0=245t-4.9t%5E2\" and then use then solve for 't'. \n" ); document.write( "
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