The figure shows an acceleration-versus-force graph for a 125-g object. What should be the value of the first tick-mark on the vertical scale, as indicated by the arrow in the figure? 
Definitions:
Melanin Pigment
A natural substance produced by the body that gives color to the skin, hair, and eyes.
Apocrine Glands
Specialized sweat glands found in certain areas of the body, associated with hair follicles and produce a milky sweat.
Elastin
A highly elastic protein in connective tissue that allows many tissues in the body to resume their shape after stretching or contracting.
Subcutaneous Fat
A layer of fat located just beneath the skin, serving as insulation and energy storage for the body.
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