Answer:
0.02 seconds
Step-by-step explanation: A 70kg man jumps 1.00 meters down onto a concrete walkway. His downward motion stops in 0.02 seconds.
Solution:
(1) Midpoint:
A point in the middle of the line segment that divides it into two equal parts.
Mid point formula:

Middle of a segment; in the form of a coordinate plane.
(2) Slope:
To find the slope of the line when passing through two points.
Slope formula:

(3) Distance:
To find the distance of two points.
Distance formula:

My estimate would be at least 21. if not that than 22.
X = - b/2a
Solving for a,
a = -b/2x
If b is the numerator, the denominator is -2x
The second option is correct.