Q1;a string of length L, which is clamped at both ends and has a tension T, is pulled aside a distance h at its center abd released.
a); What is the energy of the subsequent oscillation?
b);How often will the shape shown in the figure reappear?
(assume that the tension remains unchanged by the small increase of length caused by the transverse displacements .)[hint :in part(a),consider the work done against the tension in giving the string its intial deformation.]

Question

Q1;a string of length L, which is clamped at both ends and has a tension T, is pulled aside a distance h at its center abd released.
a); What is the energy of the subsequent oscillation?
b);How often will the shape shown in the figure reappear?
(assume that the tension remains unchanged by the small increase of length caused by the transverse displacements .)[hint :in part(a),consider the work done against the tension in giving the string its intial deformation.]

anonymous · Answer

|dw:1392400166656:dw|

anonymous · Answer

@fazeli get it?

anonymous · Answer

I not understand!!!what is energy?What is the relationship between force and energy?

anonymous · Answer

when you have a "restauration" force like -K.x, the motion is (SHM), and you can use equations like the spring ones.

Work done by force is variation of kinect Energy

anonymous · Answer

http://hyperphysics.phy-astr.gsu.edu/hbase/work.html

anonymous · Answer

ok.