Calculate Coefficient of Friction for a Bike Starting from Rest

[ludic]

A bike starts from rest. It covers a distance of 1km from rest to rest. If the minimum time in which the bike covers the distance is 100s, the coefficient of friction between road and tyre = ?


s = (1/2)at^2



no idea how to go about it.

 

[aim1732]

Remember the force with which the bike accelerates is friction's.