Greg Is In A Car At The Top Of A Roller-Coaster Ride. The Distance, D, Of The Car From The Ground As The Car Descends Is Determined By The Equation D = 144 – 16T2, Where T Is The Number Of Seconds It Takes The Car To Travel Down To Each Point On The Ride. For Which Interval Of Time Is Greg’s Car Moving In The Air?. As the car descends, the time taken for the car to be in the air can be found by. The distance, d, of the car from the ground as the car descends is determined by the equation d=144−16t2, where t is the number of.

As the car descends, the time taken for the car to be in the air can be found by. For which interval of time is greg's car moving in the air?. The distance, d, of the car from the ground as the car descends is on the ride.