§لفيزياء6967693.pdf · 16 25 1800 a 90 60 450 (300) (30) m/s —3 (m) 35 15 60 a (6) m/s 48...
15
§لفيزياء6967693.pdf · 16 25 1800 a 90 60 450 (300) (30) m/s —3 (m) 35 15 60 a (6) m/s 48 0.75 1.5 a (0.3) m —4 0.5m 0.411 (20) m/s (0.4) m —5 1000 500 (m/s2) 50 a