For the following, consider a foot on a tile floor in the shower. Which of the following is false?
I. If the foot on the tile applies a force and the foot does not move, then the force due to friction is equal to the horizontal force.
II. If the foot on the tile applies a horizontal force and the foot does not move, then the force due to friction is equal to the horizontal force
III. A person of the same weight as another, but with bigger feet, has no advantage in terms of their potential not to slip on the tiles as compared to someone with smaller feet
IV. A person of the same weight as another, but with bigger feet, has an advantage in terms of their potential not to slip on the tile.
a. I, II
b. II, III
c. I, IV
d. II, IV
e. All are true
Answer: d
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Biomechanics
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