How Does Energy Conservation Affect Block Movement Near a Wall?

[AdkinsJr]

Homework Statement

2. Homework Equations
Conservation Mechanical Energy

The Attempt at a Solution

I need to find how close to the wall the block will come. Since there's no friction, I presumed there'd be enough energy, and only enough energy, to go the same distance d to the left of A. Also note that d=-0.2m. This answer is incorrect however. I don't understand. [/B]

 

[PeroK]

Homework Statement

View attachment 196397

2. Homework Equations
Conservation Mechanical Energy

The Attempt at a Solution

I need to find how close to the wall the block will come. Since there's no friction, I presumed there'd be enough energy, and only enough energy, to go the same distance d to the left of A. Also note that d=-0.2m. This answer is incorrect however. I don't understand. [/B]

Why do you think that $d =0.2m$?

 

[AdkinsJr]

Why do you think that $d =0.2m$?

This is given.

 

[PeroK]

This is given.

What's this force of $18.8 N$ then?

 

[AdkinsJr]

Oh, I'm sorry I didn't realize something was missing. The force is taken away at point B.

 

[haruspex]

Oh, I'm sorry I didn't realize something was missing. The force is taken away at point B.

Do not assume the block is at rest at that point.