NoobBR
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Is the equation right ? How do i solve it ?
Thanks in advance and sorry about my poor english or something else
Kinetic energy dissipation by friction
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Is the equation right ? How do i solve it ?
Thanks in advance and sorry about my poor english or something else
Not really. That's not a force equation, but an energy balance one. By setting up such an energy balance equation, you could solve for the distance traveled. But that's not what's asked for.NoobBR said:
Instead, solve for the acceleration.
What's the force of friction?
vivekrai
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It is infact just a Kinematics 1D Problem. The body undergoes a constant retardation due to friction. So just use v = u + at .
NoobBR
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hmm i formulated wrong. If the friction coeficient "u" is a nonlinear function, let's say, u = x^2 how it would be solved ?
vivekrai
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Write force equation and solve the differential Equation.
We'll have [itex]m\cdot \frac{dv}{dt} = \mu mg \implies v dv =k x^2g dx[/itex], Since [itex]\mu = kx^2[/itex]
We'll have [itex]m\cdot \frac{dv}{dt} = \mu mg \implies v dv =k x^2g dx[/itex], Since [itex]\mu = kx^2[/itex]
NoobBR
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Thank you very much for the help, you people are right and its a question about aceleration.
Greetz!
Greetz!