![SOLVED: In general, the frictional force Select one: O a. is greater for smooth surfaces b. is proportional to the normal force depends on slow 'sliding speeds depends on the surface area SOLVED: In general, the frictional force Select one: O a. is greater for smooth surfaces b. is proportional to the normal force depends on slow 'sliding speeds depends on the surface area](https://cdn.numerade.com/ask_images/186a22cbdbe847d1b3904dfe3c037fe1.jpg)
SOLVED: In general, the frictional force Select one: O a. is greater for smooth surfaces b. is proportional to the normal force depends on slow 'sliding speeds depends on the surface area
![newtonian mechanics - How is frictional force dependent on normal reaction? - Physics Stack Exchange newtonian mechanics - How is frictional force dependent on normal reaction? - Physics Stack Exchange](https://i.stack.imgur.com/s476o.png)
newtonian mechanics - How is frictional force dependent on normal reaction? - Physics Stack Exchange
![weight - Friction and surface area. How friction does not depend on surface area? - Physics Stack Exchange weight - Friction and surface area. How friction does not depend on surface area? - Physics Stack Exchange](https://i.stack.imgur.com/WFkYf.jpg)
weight - Friction and surface area. How friction does not depend on surface area? - Physics Stack Exchange
![Friction depends on velocity v through the function g. Below a certain... | Download Scientific Diagram Friction depends on velocity v through the function g. Below a certain... | Download Scientific Diagram](https://www.researchgate.net/publication/258780742/figure/fig1/AS:614368077180960@1523488172725/Friction-depends-on-velocity-v-through-the-function-g-Below-a-certain-velocity-vmin.png)