document.write( "Question 1085187: If a rock is thrown upwards with an initial velocity of 25 m/s from a cliff\r
\n" );
document.write( "\n" );
document.write( "that is 5 m above the ground, where h denotes height and t denotes time.\r
\n" );
document.write( "\n" );
document.write( "The equatin given for this relation is h = -6 t2 + 24t+5\r
\n" );
document.write( "\n" );
document.write( "a. How high is the rock after 3 seconds?\r
\n" );
document.write( "\n" );
document.write( "b. When will the rock reach a height of 29 m?\r
\n" );
document.write( "\n" );
document.write( "c. When will the rock reach the ground? \n" );
document.write( "
Algebra.Com's Answer #699227 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! a. After 3 seconds: h=-6(9)+24(3)+5 \n" ); document.write( "Solve for h \n" ); document.write( "b. 29=-6tē+24t+5 \n" ); document.write( "6tē-24t+24=0 \n" ); document.write( "Solve for t \n" ); document.write( "c.When the rock hits the ground h=0, so: \n" ); document.write( "6tē-24t-5=0 \n" ); document.write( "Solve for t \n" ); document.write( "☺☺☺☺ \n" ); document.write( " |