Recent content by Lightness

I am in grade 10 so I have only pass grade 10 Math. I really liked the idea of the pendulum, and the Ep to Ek transformation. But there is really no accurate way of finding out the velocity to calculate Ek.

I have thought of doing a spring of a mass on it and its just bouncing up and down. So that would be from Elastic potential to Kinetic energy. But again the problem comes with finding the velocity right at the middle. Since we have to take that energy will be lost to consideration it will be...

I have a project which is to create a mechanical device that would transfer close to 1 J of energy from one form to another and must be able to show how you calculated the 2 energy individualy and show that the energy loss between the 2 is within a % difference. I posted on here yesterday...

Yea I should of. Even if I do this this way, could I find out exactly what Ek equals to? or is there really no way of finding the value of Ek in this situation?

It wasnt really a question, more like a problem I came up with. I am suppose to make a device that could transfer close to 1 J of energy from one form to another with a energy loss of 5% of less. I was planing to make a pendulum and with the data I giving I could get 1 J of Ep but can't really...

How would I go about finding the velocity? I have tried √2gh but that is for no friction and that all Ep tranfers to Ek

What would I need to do after if I find out how high it reached on the other side?

Homework Statement How would I go about finding the energy loss of a Pendulum from top (Ep) to Bot (Ek) Mass= 2.0kg Length= 0.38m height= 0.05091m theta= 30° 2. The attempt at a solution I know that we could find Ep by going mgh (2.0kg)(9.81m/s)(0.05091m)=1.0J of Ep But how...