2-7. The kg box A is released from rest and slides along the smooth fixed ramp and onto the surface of ground. If the coefficient of kinetic friction between the ground surface and the box is , and the height of the smooth ramp follows a normal distribution , determine the distribution of distance  that the box traveled on the ground when the box stops.

Solution

Principle of Work and Energy:

 

                                                                    

 

Thus,

 m                                                               Ans. 

 m                                               Ans.