document.write( "Question 266400: An object's altitude, in meters, is given by the polynomial h + vt - 9.8t^2, where h is the height in meters from which the launch occurs, v is the initial upward speed in meters per second, and t is the number of seconds for which the rocket is airborne. A pebble is shot upward from the top of a building 175 meters tall. If the initial speed is 32 meters per second, how high above the ground will the pebble be after 3 seconds? Round results to the nearest tenth of a meter. \n" ); document.write( "

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An object's altitude, in meters, is given by the polynomial h = vt - 9.8t^2, where h is the height in meters from which the launch occurs, v is the initial upward speed in meters per second, and t is the number of seconds for which the rocket is airborne.
\n" ); document.write( "A pebble is shot upward from the top of a building 175 meters tall. If the initial speed is 32 meters per second, how high above the ground will the pebble be after 3 seconds? Round results to the nearest tenth of a meter.
\n" ); document.write( ":
\n" ); document.write( "The equation we want to find the height above the ground:
\n" ); document.write( "h = -9.8t^2 + 32t + 175
\n" ); document.write( "Replace t with 3 sec
\n" ); document.write( "h = -9.8(3^2) + 32(3) + 175
\n" ); document.write( "h = -88.2 + 96 + 175
\n" ); document.write( "h = 182.8 ~ 183 meters above the ground \n" ); document.write( "

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