xSnoopy said:Well its not at equilibrium so i can't just sum the forces to get zero ...?
xSnoopy said:so Force normal = 2.94N
and force moving horizontal would be (0.3)(a)
then
μ(2.94) + (0.3)(a) = (0.3)(a) ? ... crap I'm not getting something here :/
xSnoopy said:Oh like net force?
The vertical would then be..
T - 0.3a = 0.3a ?
xSnoopy said:So you would get
T-μ(0.3*9.81) = 0.3a
(0.3*9.81) - T = 0.3a
and substitute ?..
T-μ(0.3*9.81) = (0.3*9.81) - T
that doesn't cancel out the T's ?
The coefficient of friction is a measure of the amount of resistance between two surfaces in contact with each other. It represents the ratio of the force required to move one surface over the other to the normal force between the two surfaces.
The coefficient of friction is an important factor in understanding the behavior and performance of objects in contact with each other. It is used to predict the force required to move an object, as well as to determine the amount of energy lost due to friction.
The coefficient of friction can be calculated by dividing the force required to move an object by the normal force between the two surfaces. It can also be determined experimentally by measuring the angle at which an object begins to slide down an inclined plane.
The coefficient of friction can be affected by several factors, including the nature of the surfaces in contact, the roughness of the surfaces, the amount of force applied, and the presence of any lubricants or contaminants.
No, the coefficient of friction cannot be negative. It is always a positive value, representing the amount of force required to overcome the resistance between two surfaces. However, it can have a value of zero in cases where there is no resistance between the surfaces, such as in the case of a lubricated surface.