Concept explainers
When you blink your eye, the upper lid goes from rest with your eye open to completely covering your eye in a time of 0.024 s.
a. Estimate the distance that the top lid of your eye moves during a blink.
b. What is the acceleration of your eyelid? Assume it to be constant.
c. What is your upper eyelid's final speed as it hits the bottom eyelid?
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