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Výpočet rychlosti, dráhy a času

Procvičování. Výpočet rychlosti, dráhy a času. 1. Vypočítej chybějící veličiny. Skupina A. Skupina B. v = s : t, 2 h = 7 200 s v = 72 000 : 7 200 v = 10 m/s. t = s : v, 160 dm = 16 m t = 16 : 8 t = 2 s. s = v . t, 12 min = 720 s s = 8 . 720 s = 5 760 m. s = v . t

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Výpočet rychlosti, dráhy a času

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  1. Procvičování Výpočet rychlosti, dráhy a času

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  3. Vypočítej chybějící veličiny Skupina A Skupina B v = s : t, 2 h = 7 200 s v = 72 000 : 7 200 v = 10 m/s t = s : v, 160 dm = 16 m t = 16 : 8 t = 2 s s = v . t, 12 min = 720 s s = 8 . 720 s = 5 760 m s = v . t 108 km/h = 30 m/s, 0,5 min = 30 s s = 30 . 30 s = 900 m t = s : v 54 km/h = 15 m/s, 15 dm = 1,5 m t = 1,5 : 15 t = 0,1 s v = s : t, 4 h = 14 400 s v = 108 000 : 14 400 v = 7,5 m/s

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  5. Vypočítej chybějící veličiny Skupina A Skupina B t = s : v 0,7 km/s = 700 m/s, 14 000 mm = 14 m t = 14 : 700 t = 0,02 s v = s : t 14 400 cm = 144 m, 0,2 h = 720 s v = 144 : 720 v = 0,2 m/s s = v . t 36 km/h = 10 m/s, 4 min = 240 s s = 10 . 240 s = 2 400 m s = v . t 6 km/s = 6 000 m/s, 2 min = 120 s s = 6 000 . 120 s = 720 000 m v = s : t 28 800 cm = 288 m, 0,06 h = 216 s v = 288 : 216 v = 1,33 m/s t = s : v 18 km/h = 5 m/s, 5 500 mm = 5,5 m t = 5,5 : 5 t = 1,1 s

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  7. Vypočítej chybějící veličiny Skupina A Skupina B v = s : t 12 000 mm = 12 m, 0,2 min = 12 s v = 12 : 12 v = 1 m/s t = s : v 7,2 km/h = 2 m/s, 400 dm = 40 m t = 40 : 2 t = 20 s s = v . t, 0,25 h = 900 s s = 45 . 900 s = 40 500 m s = v . t, 0,75 h = 2 700 s s = 22 . 2 700 s = 59 400 m t = s : v 10,8 km/h = 3 m/s, 600 dm = 60 m t = 60 : 3 t = 20 s v = s : t 36 000 mm = 36 m, 0,6 min = 36 s v = 36 : 36 v = 1 m/s

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  9. Vypočítej chybějící veličiny Skupina A Skupina B t = s : v 0,4 km/s = 400 m/s, 28 000 mm = 28m t = 28 : 400 t = 0,07 s v = s : t 43 200 cm = 432 m, 0,06 h = 216 s v = 432 : 216 v = 2 m/s s = v . t 360 km/h = 100 m/s, 0,01 min = 0,6 s s = 100 . 0,6 s = 60 m s = v . t 8 km/s = 8 000 m/s, 0,02 min = 1,2 s s = 8 000 . 1,2 s = 9 600 m v = s : t 5 400 cm = 54 m, 0,002 h = 7,2 s v = 54 : 7,2 v = 7,5 m/s t = s : v 144 km/h = 40 m/s, 40 000 mm = 40 m t = 40 : 40 t = 1 s

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