The height of a projectile can be described by the vertical motion model h(t) = - 16t2 + vt + h, where t is the time (in seconds) the object has been in the air, v is the initial vertical velocity (in feet per second), and h is the initial height (in feet). To catch a Frisbee, a dog leaps from the ground into the air with an initial vertical velocity of 28 feet per second. What is the maximum height of the dog (to the nearest hundredth)? ft At what time did the dog reach its maximum height (to the nearest hundredth)? seconds After how many seconds does the dog reach the ground (to the nearest hundredth)? seconds​