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bestchemist
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Homework Statement
A block of mass m is at rest at the origin at t=0. It is pushed with constant force F0 from x=0 to x=L across a horizontal surface whose coefficient of kinetic friction is μk=μ0(1−x/L). That is, the coefficient of friction decreases from μ0 at x=0 to zero at x=L.
Homework Equations
ax = (dvx/dx)vx
a = (F0 - mg(1-x/L))/m
The Attempt at a Solution
√(2L(F0m−μ0g))+√μ0gL
and it wrong