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A bullet of mass m and an initial speed v strikes, and is embedded in, the end of an uniform rod of mass 2m and length L originally at rest. The pivots about a fixed axis at it center
what is the angular speed of the rod after the collision? (this, i don't know)
what is the angular momentum of the bullet/rod system with respect to the axis through the rods's pivot? (this, i think i know,but probably dont)
(what i know) This is an conservation of angular momentum/inelastic collision problem? I done some of these before with kids jumping on merry-go-rounds, an such, but it is the symbolic
answers i think throws me off. The speed of the system i terms of what. I know the policy here is to show your work, however work is a vector quantity, and i have been going in around in circles with this problem. So my net work as of this moment is
mrv = (1/12(2m)l^2 + mr^2) wf
solve for then wf, and wf equals all this mess --> mrw/( 1/12(2m)l^2 +mr^2) which i know isn't right. So I'm counting on
someone much smarter than I, to help me out of the woods on this easy problem
what is the angular speed of the rod after the collision? (this, i don't know)
what is the angular momentum of the bullet/rod system with respect to the axis through the rods's pivot? (this, i think i know,but probably dont)
(what i know) This is an conservation of angular momentum/inelastic collision problem? I done some of these before with kids jumping on merry-go-rounds, an such, but it is the symbolic
answers i think throws me off. The speed of the system i terms of what. I know the policy here is to show your work, however work is a vector quantity, and i have been going in around in circles with this problem. So my net work as of this moment is
mrv = (1/12(2m)l^2 + mr^2) wf
solve for then wf, and wf equals all this mess --> mrw/( 1/12(2m)l^2 +mr^2) which i know isn't right. So I'm counting on
someone much smarter than I, to help me out of the woods on this easy problem