Recent content by Hajarmq

If a closed system has kinetic and potential energy such as the total energy (the sum of the two) equals zero for all times, what does that mean? In other words, what does it physically mean that the total energy is always zero for a closed system? I think I have a small misunderstanding of the...

Let F_ki be the force applied by a point mass i on a point mass k. This force depends on the variables x_k and x_i which are the position vectors of respectively k and i (to simplify let´'s consider this in 1 dimension). Suppose this force is conservative. Then, according to my course and...

How to draw the final position? Joining which points? (it was x1)

does this make sense? if it does, i can't conclude what the height h is. I am tempted to say its the difference of the two extensions, but i can't really see why.

F1 and F2 being the amplitudes of each force

I still cannot establish a relationship between the moments and the angle. Maybe another hint?

It is what I used for calculating the stretch-distances. However, for the angle, i should figure out some height combined with some horizontal distance and use the sine or tangent function on some triangle. This is where i am confused, what height and horizontal distance to consider and why...

Summary:: Calculating the inclination angle A stick is on two springs with spring constants D1=500N/m and D2=300N/m. Consider the stick is without mass and can rotate around the point E, which is distant from spring 1 with 0,1m and from spring 2 with 0,8m. A force F=100N pulls the stick up...