2.2
- 1. 塀 犖 F 犖 5 41101 犖 犖 F 5 ( 犖F ) 犖 4 15 F犖 F 5 F F 犖 犖 犖 犖 F F 犖犖 犖 (X) 犖 犖, , F 犖F 1. F 10 F F 犖1 F F4 F F 犖. 6 F( )2 F .6 F ( )2 . 14 F ( )2 F . 14 F( )2 2. F F 28 F F FF F F 4 F 2 F 2.5 犖. 15 . 20 . 35 . 40 3. F 12 F F F 3 F 犖 F F 4 犖. 19 . 24 . 36 . 48 4. FA FB 犖 犖 犖 F F 3 1.8 F( )2 F 犖6 FA F F FB 犖 犖. 21.6 . 32.6 . 54.0 . 86.6 5. FA FB 犖 F F FA F 3 F F FB 犖 F F犖 FA FB F犖 F 犖. vA = 3 vB . vA = 3 vB . vB = 3 vA . vB = 3 vA 6. F F F F 6 10 F 2 23 31 F犖 F ( ) 犖. 4 . 3 . 2 . 1
- 2. 7. F 犖 犖 犖 F F 犖 4.9 犖 F 犖 F F 犖 犖 g = 9.8 m/s2 犖. 2.0 . 1.5 . 1.0 . 0.5 8. F 15 F (犖 F g = 10 m/s2 ) F 犖 犖犖 F 犖. 3.0 . 2.0 . 1.5 . 1.0 9. 犖 F F F 40 F 犖 F 犖 F F 12 (犖 F g = 10 m/s2 ) 犖. 240 . 480 . 720 . 1,200 10. 犖 F 10 F 犖 F F F F 3 F 犖F F F 犖. 15 . 30 . 45 . 60
- 3. 塀 犖 F 犖 5 犖F ( 41101 ) 犖 幣 4 犖 犖 F 5 犖F F 1 2 3 4 犖 5 6 7 8 犖 9 犖 10