# Physics

posted by .

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for answers, but I just need some guidance on some stuff I honestly cannot figure out how to do, no matter how easy it might seem to others.

You throw a 19.0 N rock into the air from ground level and observe that, when it is 11.0 m high, it is traveling upward at 25.0 m/s.

Use the work-energy principle to find the rock's speed just as it left the ground.

Use the work-energy principle to find the maximum height the rock will reach.

Energy at ground= PEat11meters + KE at 11 meters.
Solve that for energy at the ground.

AT max height.
energyground= PE at max height= mgh
solve for h.

## Similar Questions

1. ### Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site …
2. ### Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site …
3. ### Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site …
4. ### Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site …
5. ### Physics

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site …
6. ### Easy (yet confusing) Algebra

These problems are pretty easy, but confusing (as stated in the subject line). |2x+5|-x=10 |3x+4|-2x=11 I know there are supposed to be two answers for each problem, for the first problem I got 5 and for the second problem I got 7. …
7. ### Math

I have a matrix with brackets around [7 6 ][13] [14 -6] [8] and i know there are two separate brackets but on this thing you cant just do one big one.. so if you don't understand the equation that was suppose to go into matricies was …
8. ### Math

I'm doing some word problems on finding the areas of rectangles, its just like all complicated. I don't understand how to do them. For example: A square field had 3 m added to its length and 2m added to its width. The area is 90 m2(squared). …
9. ### Physics

If an object is hung from a cable with a weight of 40 N, what is the tension in the two cables?
10. ### Algebra 1A

Thanks Reiny,that is my only problem trying to figure out the equation. I just cannot figure out for some reason when getting the intersection, I tried several different ways yet my progress is still the same.

More Similar Questions

Post a New Question