After studying the graph and locating the vertex of the parabola. The <em>maximum</em> height of the rock is 64 feet. It is reached after a second.
<h3>How to obtain information from free fall equation by graphical approach</h3>
<em>Free</em> fall is an <em>uniformly accelerated</em> motion due to gravitation, whose expression is of the form:
h = -(1/2) · g · t² + v' · t + h' (1)
Where:
- g - Gravitational constant, in feet per square second.
- v' - Initial speed, in feet per second.
- h' - Initial height, in feet
- t - Time, in seconds
Graphically speaking, the model represents a parabola. The <em>maximum</em> height is the <em>vertical</em> component of the vertex of the curve and its time is the <em>horizontal</em> component.
Hence, the <em>maximum</em> height of the rock is 64 feet. It is reached after a second.
To learn more on parabolas: brainly.com/question/4074088
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