Which of the following surfaces has the largest amount of static friction against your skin? Which one has the highest coefficient of static friction against your skin?
Select one:
a. sandpaper
b. ice
c. wax paper
d. A Teflon coated sheet.
a. sandpaper
To determine which surface has the largest amount of static friction against your skin, we need to identify the surface with the highest coefficient of static friction. The coefficient of static friction is a measure of how much force is required to start an object moving along a surface.
To find the surface with the highest coefficient of static friction, we can compare the coefficients of static friction for each of the given surfaces.
The coefficient of static friction for sandpaper is generally high, making it more likely to have a larger amount of static friction compared to the other surfaces. Sandpaper is specifically designed to have a rough surface, and this roughness increases the friction between the sandpaper and your skin.
Ice generally has a very low coefficient of static friction, making it slippery and reducing the amount of static friction between your skin and the surface. Due to the presence of moisture on ice, as well as the smoothness of the surface, it offers very little resistance to the movement of objects.
Wax paper has a moderate coefficient of static friction. It is smoother than sandpaper but still provides more resistance compared to ice.
A Teflon coated sheet has a very low coefficient of static friction. Teflon is a material with low friction properties, making it slippery and reducing the resistance against your skin.
Considering the given options, sandpaper is most likely to have the largest amount of static friction against your skin, as it generally has the highest coefficient of static friction compared to the other surfaces listed.
In summary, the surface with the highest coefficient of static friction against your skin would be sandpaper (option a).