Amodel jet is fired up in the air from a 16-foot platform with an initial upward velocity of 52 feet per second . the height of the jet above the ground after t seconds is given by the equation h=-16t^2+52t+16 where h is the height of the jet in feet and t is the time in seconds since it is launched . what is the maximum height the jet reaches , to the nearest foot a) 777 feet b)58 feet c)30 feet d)16 feet