- #1
sweedeljoseph
Homework Statement
A device consist of two rotating disks, separated by a distance of d = 0.85 m, and rotating with an angular speed of 95 rad/s. The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is [tex]\theta[/tex] = 0.24 rad. From these data, determine the speed of the bullet.
Homework Equations
w=[tex]\theta[/tex]/Delta t
*v=vo+at ~ w=wo+[tex]\omega[/tex]t
*v2=vo2+2ax ~ w2=wo2+2[tex]\omega[/tex][tex]\theta[/tex]
*x=vot+(1/2)at2 ~ [tex]\theta[/tex]=wot+(1/2)at2
the ones with * means i changed it to what the problem is about. means the same thing just different letters so you won't get confused i guess.
The Attempt at a Solution
well i know the formulas but when the bullet hits the first disk won't it loose some speed and same with the second thing? does it mean speed after its done hitting or what I am confused please help.
thank you!
sweedeljoseph