Do you really have to answer this for your music class literally about like a play oh wait I think I’m answering a question for arts LOL
Answer:
i don' know the nane of this tool but like 93-97 pounds
It depends if it's a single or a double bar line.
if it's a double bar line it's just there to separate the sections of the music and if it's a single bar line all it does it separate the beats in order to make a measure.