Coefficient of Kinetic Friction (1 Viewer)

[rawker]

An object is placed on a rough floor and given an initial velocity of 15 m/s. It then slides 25 m before coming to rest. The coefficient of kinetic friction between the object and the floor is..?

 

[jyu]

An object is placed on a rough floor and given an initial velocity of 15 m/s. It then slides 25 m before coming to rest. The coefficient of kinetic friction between the object and the floor is..?

kinetic energy changes to heat (work done by friction)

(1/2)mv^2 = umgs where u is coeff of kinetic friction, s displacement
(1/2)(15)^2 = u(9.8)(25) etc

 

[rawker]

kinetic energy changes to heat (work done by friction)

(1/2)mv^2 = umgs where u is coeff of kinetic friction, s displacement
(1/2)(15)^2 = u(9.8)(25) etc

Thanks