I would really appreciate any help on this. I'm confused with this.
Homework Statement
An empty crate is sliding witha speed of 7m/s over a frictionless surface when it hits a rough patch where .25 is the coefficient of kinetic friction. Find the distance it takes to stop the box.
The...
Homework Statement
How hard do you need to push a 2kg box which has .2 coefficient of kinetic friction so that it moves with a constant speed of 5m/s?
[The Attempt at a Solution
(I'm calling g 10m/s2 not 9.8)
F(kinetic friction)=(.2)Fn=(.2)mg=(.2)(20N)=4N
so...since the acceleration is...