Recent content by George2020

Thanks for the feedback for clarifying the subject. But if I do not go into much detail and stick to basics, the material should increase both the friction and coefficient of friction. Or else how do you explain why the coefficient is fixed for different material ? If you increase the weight do...

On a horizontal surface the only forces acting are normal force and force of gravity. But if the gravity is constant for different places should increase the mass not increase the friction force and coefficient as well. ?

Friction force is a product of coefficient of friction and normal force . However, on a horizontal surface the normal force is mass x gravity. Hence, the relationship between mass and friction is directly proportional. How does material affect the coefficeint of friction affect and static and...

Mass is directly proportional to static and kinetic friction and inversely proportion to the coefficient of friction. Material affects the coefficient of friction as well as both static and kinetic friction. eg rough surface will have a higher coeffieiceint of friction

Thanks for input. Is this the correct approach. Force of gravity = 150 x 9.8= 1470N[d] Force Normal = -1470N Force Net = Force applied +Force Friction = 1200N +(-750N) =450N Force net=ma a=Force net/mass = 450N/150kg = 3m/s sq.

Hi , How to approach the problem? Thanks