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  • Writer's picturekeshprad

PhysicsBowl 2017 Q2


2) This question involves topics of constant acceleration kinematics in order to find the initial height of the object is the given situation. Let's draw a diagram of the situation and the information we know.

Where v is velocity, h is height, a is acceleration, and t is time

Note that a[y] is simply the value of the acceleration due to gravity, g.


Next, by using the kinematic equation for the displacement — the second integral of acceleration — we can find the initial height.

Where h is height, v is velocity, t is time, and a is acceleration

Answer: D

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