Factors Affecting Friction Force
Trending Questions
Q. While walking on ice, one should take small steps to avoid slipping. This is because smaller steps ensure
- larger normal force
- smaller Normal force
- smaller coefficient of friction
- larger coefficient of friction
Q.
Why does frictional force gets increase when two surfaces in contact are polished beyond a certain limit?
Q. A block of mass m is on an inclined plane of angle θ. The coefficient of friction between the block and the plane is μ and tanθ>μ. The block is held stationary by applying a force P parallel to the plane. The direction of force pointing up the plane is taken to be positive. As P is varied from P1=mg(sinθ−μcosθ) to P2=mg(sinθ+μcosθ), the frictional force f versus P graph will look like:
![](https://search-static.byjusweb.com/question-images/byjus/ckeditor_assets/pictures/833009/original_6563.PNG)
Q. A block of mass m is placed on an inclined plane of angle θ. The coefficient of friction between the block and the plane is μ and tanθ>μ. The block is held stationary by applying a force P parallel to the inclined plane. The direction of force pointing up the plane is taken to be positive. As force P is varied from P1=mg(sinθ−μcosθ) to P2=mg(sinθ+μcosθ), then the graph of frictional force f versus P graph will look like:
Q. (A) A mass of 4 Kg rests on a horizontal plane . The plane is gradually inclined until at an angleθ=15o with the horizontal, the mass just beings to slide, What is the coefficient of static friction between the block and the surface?
(B) Two blocks of masses 1 Kg and 2 Kg are connected by an intextensible string which passes over a frictionless pulley as shown in the figure.calculate the acceleration of these blocks
![1079863_d753a50bffe949099e4d0e08d5ee4ef8.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1079863_d753a50bffe949099e4d0e08d5ee4ef8.png)
(B) Two blocks of masses 1 Kg and 2 Kg are connected by an intextensible string which passes over a frictionless pulley as shown in the figure.calculate the acceleration of these blocks
![1079863_d753a50bffe949099e4d0e08d5ee4ef8.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1079863_d753a50bffe949099e4d0e08d5ee4ef8.png)
Q. A block of mass m is on an inclined plane of angle θ. The coefficient of friction between the block and the plane is μ and tanθ>μ. The block is held stationary by applying a force P parallel to the plane. The direction of force pointing up the plane is taken to be positive. As P is varied from P1=mg(sinθ−μcosθ) to P2=mg(sinθ+μcosθ), the frictional force f versus P graph will look like:
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/833009/original_6563.PNG)
Q. In figure, a crate slides down an inclined right-angled trough. The coefficient of kinetic friction between the crate and the trough is μk. What is the acceleration of the crate in terms of μk, θ and g?
![239166_c05e7ba8412b4c71b09705c63e7e22bd.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/239166_c05e7ba8412b4c71b09705c63e7e22bd.png)
![239166_c05e7ba8412b4c71b09705c63e7e22bd.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/239166_c05e7ba8412b4c71b09705c63e7e22bd.png)
- g(sinθ−√2μkcosθ)
- g(sinθ−μkcosθ√2)
- g(sinθ+√2μkcosθ)
- g(sinθ+μkcosθ√2)