How Far Does an Object Travel with Given Friction and Initial Velocity?

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An object with an initial velocity of 4 m/s is pushed along a surface with a coefficient of kinetic friction of 0.20. To determine how far it travels before stopping, the net force can be expressed as Fnet = ma, where the frictional force is calculated using Ff = U(Fn). While mass initially seems necessary for calculations, it can be eliminated from the equations, allowing for the determination of acceleration. Using kinematic equations, the distance traveled can then be calculated without needing to know the object's mass. This approach effectively simplifies the problem and leads to a solution.
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Homework Statement



An object is given a push along a surface of which the coefficient of kinetic friction is .20. The initial velocity is 4m/s. How far does it go before it stops.

Homework Equations


Fnet=ma
Ff=U(Fn)


The Attempt at a Solution


Is it just me or do you have to know the mass to figure out this problem? I honestly can not seem to get a start on it.
 
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mmiller9913 said:

Homework Statement



An object is given a push along a surface of which the coefficient of kinetic friction is .20. The initial velocity is 4m/s. How far does it go before it stops.

Homework Equations


Fnet=ma
Ff=U(Fn)


The Attempt at a Solution


Is it just me or do you have to know the mass to figure out this problem? I honestly can not seem to get a start on it.
In lieu of energy methods, if you use your relevant equations, Fnet =ma , where Fnet is U(Fn), and Fn is___?, you may find that you can get the acceleratiion without knowing the mass. Then get the distance traveled using the kinematic equations of motion.
 

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