# An object with a mass of #5 kg# is pushed along a linear path with a kinetic friction coefficient of #u_k(x)= x^2-3x+6 #. How much work would it take to move the object over #x in [2, 3], where x is in meters?

##### 1 Answer

Feb 26, 2016

Though not mentioned it looks like the object moves along a plane perpendicular to the the gravitational force. So we can equate the Normal force on the object to its weight as they balance each other.

**Workdone** :