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What is the length of track on a 48 m high rollercoaster hill if a car going up it decellerates at 4.585 m/s^{2}?

m?

What is the length of track on a 89 m high rollercoaster hill if a car going up it decellerates at 5.536 m/s^{2}?

What is the length of track on a 88 m high rollercoaster hill if a car going up it decellerates at 5.394 m/s^{2}?

What is the length of track on a 70 m high rollercoaster hill if a car going up it decellerates at 3.655 m/s^{2}?

What is the length of track on a 81 m high rollercoaster hill if a car going up it decellerates at 3.923 m/s^{2}?

What is the length of track on a 61 m high rollercoaster hill if a car going up it decellerates at 3.702 m/s^{2}?