A) \[{{F}_{c}}<{{F}_{m}}<{{F}_{s}}\]
B) \[{{F}_{c}}<{{F}_{s}}<{{F}_{m}}\]
C) \[{{F}_{m}}<{{F}_{c}}<{{F}_{s}}\]
D) \[{{F}_{s}}<{{F}_{c}}<{{F}_{s}}\]
Correct Answer: C
Solution :
When a body that is resting on a surface is moved along the surface, a static friction is generated between the two contact surfaces. The minimum force required to simply move the body is equal to the magnitude of the generated static friction. The static friction offered by a marble floor is less than that offered by a cardboard sheet and sandpaper. Again, the static friction offered by a cardboard sheet is less than that offered by a sandpaper. Hence, the minimum forces required to simply move the box on the different surfaces are related as\[{{F}_{m}}<{{F}_{c}}<{{F}_{s}}\].The correct answer is C.
You need to login to perform this action.
You will be redirected in
3 sec
