Only solve 2a

3 /4 100% + DO EITHER 2a or 2b, but not both. Highlight your choice. 2a) A group of Woodlands student astronauts fires a projectile from the ground on Callisto, where gravity is much less than on Earth. After 45 s, the projectile reaches a maximum height of 2500 m. It lands on the ground after 90 s. Determine the quadratic relation relating the height of the projectile and time. [4A, 1C] 2b) The sum of the squares of three consecutive odd integers is 7211. Determine the integers. [4A, 10]