Transcription of 8. 運動量と力積，衝突 - eng.u-hyogo.ac.jp
1 88 8. 8. (p 119)(p 119) ( )( ) m v mv kg m/s(=N s) kg m/s( Ns) (p 120)(p 120) ( )( ) F t F t Ft (I) Ft (I) I=FtI = Ft kg m/s kg m/s = = = F m F t v v mv mv = Ft 7 8 8 mv mv = Ft mv mv= Fmv mv t t ( )( ) t m v F = = =ddmmvmvmF&&( ) dtt ()
2 ( ) ( ) (p 122)(p 122) ( )( ) ( ) ( ) = mv+mv=mv +mv (8 17)mAvA+ mBvB= mAvA + mBvB ( )( p 122 86 )( , ) (p 122)(p 122) ( )( ) = mAvA+ mBvB= mAvA + mBvB ( ) (p 124)(p 124) ( )( ) (p 124)(p 124) ( )( ) A mB B mA A vA AB A, B vA ,vB 2 ABAABABABAA vmmmvvmmmmv+=+ =2','BABA( p.)
3 124, 4 )( p. 124, 4 ) (( )) (( )) v ( ) v( ) v( ) e 've=v e e = 1= 1 (( )) (( )) 5p (( )) ( ) (( ))(p. 125)(p. 125) ( ) vA, vB mA mB vA , vB ()ABvv ''()BAABBAAB vvevvvvvve = ='',BBAABBAA vmvmvmvm+=+'' 2 ( ) (( )) (( ))++88 8.
4 8. = = = 88AA22 88--AA--22 0m/s 0 m/s 88AA33 88--AA--33 8-A-2 8A2 88AA44 88--AA--44 88AA66 88--AA--66 88AA77 88--AA--77(1) (1).
5 (2). 88AA88 88--AA--88 ( ( 4, ) 88AA99 88--AA--99p 126 5 p. 126 5 88BB11 88--BB--11(1). (1). (2). F F ma + mg 88BB55 88--BB--55(1) ()(2) (3) (8 37) (3) ( ) (4))
