One Dimensional Kinematics of Object

AI Thread Summary
An object released from rest at height h travels 0.31h in the first second of its descent, prompting a calculation of its average velocity during the entire fall. The relevant kinematic equations are provided, but the initial poster struggles to determine how to apply them to find a numerical answer. They recognize that the distance fallen in the first second is a fraction of the total height, suggesting a need to calculate the total height based on gravitational acceleration. The discussion highlights the challenge of connecting initial conditions with kinematic equations to derive the average velocity. Overall, the thread emphasizes the importance of understanding the relationship between distance, time, and velocity in one-dimensional motion.
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Homework Statement


An object is released from rest at a height h. It travels 0.31h during the first second of its descent. Determine the average velocity of the object during its entire descent.

Homework Equations



X - Xo = Vot + .5at^2
v^2 = Vo^2 + 2a(X - Xo)
X - Xo = .5(Vo + V)t

The Attempt at a Solution


I basically have no idea where to start.
.31/1 = .31 m/s is the velocity in the first second, but that is not the initial velocity, which is 0.
h = .5(0+Vf)t = .5Vf*t, but I have no idea how one would get a numerical answer, which is what I need.
 
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Perhaps try figuring out what the height actually is to begin with. How far does any object fall under the influence of gravity in 1 second? You are told that this distance is 31% of the total distance, so to what height was it raised? See if you can work from there.
 
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