Based on the data, 154.8 can be predicted about the downward speed at the end of 5 seconds.
Speed of Falling Object
Any motion of a body in which gravity is the only force acting on it is referred to as free fall in Newtonian physics. A body in free fall has no force acting on it according to general relativity, where gravitation is reduced to space-time curvature.
An object may not necessarily be falling down in the traditional sense of the word while it is in a "free fall" in a technical sense. Even if an object going upwards isn't typically thought of as falling, it is said to be in free fall if it is just being affected by gravity. The Moon is therefore falling freely around the Earth, even if the speed of its orbit keeps it quite far from the planet's surface.
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