Solving Physics Homework: A Frustrating Struggle

[stinlin]

Homework Statement

See link.

http://img515.imageshack.us/img515/6383/picture15lj9.jpg

Homework Equations

Imp = integral F dt
mv = momentum
mgh
1/2 mv^2

The Attempt at a Solution

I drew to FBD's to find the impulses and such, but I just don't know what to do. I then tried to use impulse momentum combined with conservation of energy, but got the WRONG answer. I can take a picture of my work, but it'll mean nothing...

 

[mybsaccownt]

I was interested in solving this problem, but it turned out to be trickier than I thought it was...maybe I suck? heheanyways, google helped me find this:

https://www.physicsforums.com/archive/index.php/t-72193.html

looks familiar doesn't it?how frustrating...somehow I overlooked the use of v = vo + a*t

so simple when you get another perspective, sometimes you get tunnel vision and want to solve it your own way but there are better ways

anyways blah...rambling

 

[m2003]

I understand the frustration that comes with solving physics homework problems. It can be a challenging and time-consuming process, but it is important to remember that solving these problems is an essential part of learning and understanding the principles of physics.

In this specific problem, it seems like you have already made some good attempts at finding a solution. Drawing free body diagrams and using equations such as impulse-momentum and conservation of energy are definitely the right approaches. However, it is possible that there may be some small mistakes in your calculations or assumptions that are leading to the wrong answer.

My suggestion would be to carefully review your work and double-check all the steps and calculations. It can also be helpful to try solving the problem from a different perspective or using a different approach. Sometimes, looking at the problem in a new way can help you identify where you may have made a mistake.

Remember, solving physics problems takes practice and patience. Don't get discouraged if you don't get the right answer on the first try. Keep working at it and seek help from your teacher or classmates if needed. With determination and perseverance, you will eventually master these concepts and be able to solve even the most challenging physics problems.