Question

Zrobicie mi to plz póz A wszystkie podpunkty daje naj jeśli dobrze

Answer 1

Odpowiedź:

1.

W rozwiązaniach zadania korzystamy ze wzoru s = v * t , gdzie :

v - prędkość

s - droga

t - czas

a)

t = 2h

v = 30 km/h

s = v * t = 30 km/h * 2 h = 60 km

b)

t = 3h

v = 10 km/h

s = v * t = 10 km/h * 3h = 30 km

c)

t = 5h

v = 60 km/h

s = v * t = 60 km/h * 5h = 300 km

d)

t = 4h

v = 10 km/h

s = v * t = 10 km/h * 4h = 40 km

e)

t = 8h

v = 80 km/h

s = v*t = 80 km/h * 8h = 640 km

f)

t = 20h

v = 120 km/h

s = v * t = 120 km/h * 20h = 2400 km

g)

t = 3h

v = 12 km/h

s = v * t = 12 km/h * 3h = 36 km

h)

t = 4h

v = 80 km/h

s = v * t = 80 km/h * 4h = 320 km

i)

t = 5h

v = 40 km/h

s = v* t = 40 km/h * 5h = 200 km

2.

W rozwiązaniu zadania korzystamy ze wzoru v = s/t , gdzie :

s - droga

t - czas

v - prędkość

a)

s = 200 km

t = 4h

v = s/t = 200 km :  4h = 200/4 km/h = 50 km/h

b)

s = 210  km

t = 3h

v = s/t = 210 km : 3h = 210/3 km/h = 70 km/h

c)

s = 300 km

t = 6h

v = s/t = 300 km : 6h = 300/6 km/h = 50 km/h

d)

s = 300 km

t = 3h

v = s/t = 300 km : 3h = 300/3 km/h = 100 km/h

e)

s = 100 km

t = 2h

v = s/t = 100 km : 2h  = 100/2 km/h = 50 km/h

f)

s = 300 km

t = 4h

v = s/t = 300 km : 4h = 300/4 km/h = 75 km/h

g)

s = 400 km

t = 5h

v = s/t = 400 km : 5h = 400/5 km/h = 80 km/h

h)

s = 360 km

t = 4h

v = s/t = 360 km : 4h = 360/4 km/h = 90 km/h

i)

s = 560 km

t = 7h

v = s/t = 560 km : 7h = 560/7 km/h = 80 km/h