The discussion focuses on calculating the distance an object travels before stopping, given a coefficient of kinetic friction of 0.20 and an initial velocity of 4 m/s. Participants clarify that the mass of the object is not necessary to determine the distance, as the net force can be expressed in terms of the frictional force. By applying Newton's second law (Fnet = ma) and kinematic equations, users can derive the acceleration and subsequently calculate the stopping distance.
PREREQUISITESStudents in physics courses, educators teaching mechanics, and anyone interested in understanding motion dynamics involving friction.
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.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.