The function h represents the height of an object t seconds after it is launched into the air. The function is defined by h(t) = -5t² + 20t+18. Height is measured in meters.1) When will the object hit the ground? (round to the nearest hundredth)seconds2) At what 2 times does the object occupy a height of 33 meters?seconds and seconds3) When does the object reach its maximum height? seconds4) What is the maximum height that theobject reaches? meters