According to the laws of mechanics. Friction is defined as the force resisting motion. Whenever there is motion there is friction opposing it. The frictional resistance of a surface is given by an unit less index called coefficient of friction. This depends upon the roughness of the surface. Friction = coefficient * normal reaction Thus, from the formula it is seen that friction is directly proportional to normal reaction and coefficient of friction. Normal reaction is nothing but the the perpendicular reaction provided to a body by a surface as a result of all the perpendicular forces acting on the surface due to the body. for example, consider a block of wood on a table. Weight of the body acts downwards perpendicular to the surface of the table.Thus here the table will apply an equal and opposite force on the block(Newton's third law). This force will be perpendicular to the both the block and the table surface.Thus it is known as the normal reaction. As is seen that every object exerts it weight upon the surface it is placed on. Weight = mass* g. Where g = acceleration due to gravity(=9.81 for earth surface) Thus increase in mass increases normal reaction. Hence increasing friction. "FRICTION VARIES DIRECTLY WITH MASS"
friction coefficient, 1kg mass takes 0.5kg force to push horizontally,
coefficient = 0.5/1 = 0.5
actually there are two , static and sliding, static or breakaway friction is usually greater, though the equation holds true for both
The force needed to move an object depends e.g. on the mass of the object. When the mass increases, the downward force on the object increases as well (9.81N/kg), thereby causing more friction.
the effects of mass on friction is that the objects mass slows down the object, it doesn't let the object travel as fast.
The more mass an object has, the more friction it will have. The less mas an object has, the less friction it will have.
No, it affects the magnitude of friction.
Friction does not affect inertia, but it affects momentum. Momentum is the product of the mass of an object and its speed. Friction forces, if present, will always act to decrease the momentum of a moving object.
The frictional force(f) = μ *mg for horizontal motion, where μ = coefficient of friction, m = mass of the object, g = acceleration due to gravity. Hence friction depends upon the weight of the object.
1.nature of the substance and the surface (roughness or smoothness). 2.mass of the object.
Well weight and mass are proportional... But mass affects friction because the higher your mass the higher your friction.
two variables are : the surface type and the mass of the object. So the more mass an object has the less friction it has. The less mass an object has, the more fiction it has.
Yes Friction=Reaction force x COF Reaction force = mass x gravity So Friction=mass x gravity x COF ^ Change the mass, change the friction
Sin no
Friction does not affect inertia, but it affects momentum. Momentum is the product of the mass of an object and its speed. Friction forces, if present, will always act to decrease the momentum of a moving object.
The factors affecting kinetic energy are mass and velocity.
Mass (gravity) & friction!
this is a tricky 1 because the mass itself does not affect it, but rather the friction of the plane it is moving on and the momentum (which does factor in mass) if no friction exists, then it is purely the momentum. momentum = mass x velocity
The frictional force(f) = μ *mg for horizontal motion, where μ = coefficient of friction, m = mass of the object, g = acceleration due to gravity. Hence friction depends upon the weight of the object.
1.nature of the substance and the surface (roughness or smoothness). 2.mass of the object.
mass effects friction by making the object go slower as mass increases
Well weight and mass are proportional... But mass affects friction because the higher your mass the higher your friction.
two variables are : the surface type and the mass of the object. So the more mass an object has the less friction it has. The less mass an object has, the more fiction it has.
No: this is a common misconception Friction= Normal force* Coefficient of friction where Normal force= Mass* Acceleration due to gravity* Cos(angle of surface) and the coefficient of friction is an intrinsic property of the surface Therefore, only the mass of the object and the surface composition affect friction