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  2. Finding coefficient of static friction with velocity and radius

    www.physicsforums.com/threads/finding-coefficient-of...

    To find the coefficient of static friction, you can use the formula µ = v^2/rg, where µ is the coefficient of static friction, v is the velocity, r is the radius, and g is the acceleration due to gravity. This formula assumes that the object is moving in a circular path with a constant speed. 2. Can I use any unit for velocity and radius when ...

  3. Calculating coefficient of static friction without a mass. -...

    www.physicsforums.com/threads/calculating-coefficient-of...

    The formula for calculating coefficient of static friction without a mass is μs = F/N, where μs is the coefficient of static friction, F is the force required to move the object, and N is the normal force acting on the object. 3. Can the coefficient of static friction be negative when calculated without a mass?

  4. How to find coefficient of friction *Without* mass? - Physics...

    www.physicsforums.com/threads/how-to-find-coefficient-of...

    To determine the acceleration of the car, you can use the equation Vf^2=Vo^2 +2aΔx and calculate the acceleration to be -7.53 m/s^2. To determine the coefficient of friction between the tires and the road, you can use the equation Ff=μmg and set it equal to Ff=ma. By canceling out the mass and solving for μ, you can. Nov 2, 2017. #1.

  5. Acceleration of a block with static & kinetic friction - Physics...

    www.physicsforums.com/threads/acceleration-of-a-block-with...

    The acceleration of a block with static and kinetic friction is affected by the magnitude of the applied force, the coefficient of friction between the surfaces, and the mass of the object. Other factors such as the surface roughness and temperature can also play a role. 4.

  6. Calculate the coefficient of friction from mass and angle -...

    www.physicsforums.com/threads/calculate-the-coefficient-of...

    First, the question omits to specify you are to find the coefficient of static friction. If it wanted kinetic friction it would need to provide data on acceleration. Secondly, your equation 2) should properly be two equations: 2a) ##\mu_sN≥F_s## for static friction 2b) ##\mu_kN=F_k## for kinetic friction. Note the ≥.

  7. Minimum Force to Make an Object Move - Physics Forums

    www.physicsforums.com/threads/minimum-force-to-make-an...

    Force Minimum. In summary, to determine the minimum force necessary to make a 6 kg object slide on a horizontal surface with a coefficient of friction of 0.8, one can use the equation Fsmax = u * Fn, where Fsmax is the force that must be overcome to make an object move, u is the coefficient of friction, and Fn is the normal force.

  8. Calculate the coefficient of static & kinetic friction - Physics...

    www.physicsforums.com/threads/calculate-the-coefficient-of...

    Calculate the coefficient of static & kinetic friction. In summary: Fa=350N; m=200kgFnet=Fa-Fs; 0=350-u (200) (9.8)-350/1960=-u0.178=uIn summary, static friction opposes the motion of the sofa, so the force of 350 N is required to move it. The mass of the sofa is 200 kg, so the normal force created by the weight of the sofa is 80 Newtons.

  9. Calculate combined friction on multiple different surfaces?

    www.physicsforums.com/threads/calculate-combined-friction...

    The combined friction on multiple different surfaces can be calculated by adding the individual friction forces of each surface. This can be done by multiplying the coefficient of friction of each surface by the normal force acting on it, and then adding all the resulting forces together. 2.

  10. Friction force without coefficient of friction? - Physics Forums

    www.physicsforums.com/threads/friction-force-without...

    Friction force without coefficient of friction can be calculated by multiplying the normal force (the force perpendicular to the surface) by the kinetic friction coefficient. However, in this case, the coefficient of friction is not considered and the force is simply calculated as the normal force. 3.

  11. Sliding Rod In A Magnetic Field (w/ Static Friction) - Physics...

    www.physicsforums.com/threads/sliding-rod-in-a-magnetic...

    When a rod is slid in a magnetic field, the moving charges in the rod experience a magnetic force perpendicular to the direction of motion. This force causes the rod to experience a sideways push, resulting in static friction between the rod and the surface it is sliding on. 2. What factors affect the amount of static friction in a sliding rod ...