Drums

So I was at my friends house the otherday watching is one guy playing the drums. When he hit the drums with a stick some force is transferred to the drum and some is pushed back on the stick repeling each other. Yet the force in the drum of the reverberation starts to deminish. The reason is the Kenetic Energy lost so sound. As sound is created the drum heads exert a force on the air creating waves we hear as sound. This is why when you hit a drum you hear sound, and why the drum wont vibrate forever. Some kenetic energy is lost due to sound in the collision and air resistance. When you hit the drum the stick will bounce back but it will have less momentum and Kenetic Energy that it previously had. The energy is lost from the sound of the collision and the air resistance.

Thanks for reading, Mark.