- #1
sgh1324
- 12
- 0
look figure (b)
suppose that baseball deliver F through horizontal motion.
imagine that the O point of the system is same line of F (+x is F direction)
then before percussion, the angular momentum of the system is "0" because r and v of baseball are same direction (L = r x mv = 0)
so after percussion, the ball gets y direction velocity because if bat has angular momentum, the other angular momentum has minus sign and same size so that make 0 angular momentum
that means center of mass of baseball bat has y direction velocity cause of conservation of linar momentum so that make y direction linar momentum also be 0 before and after percussion
so if the baseball hits bat like figure (b), the bat never move just x direction like figure (b)
sth problem in my inference??