V= 108km/h = 30m/s
a = 30m/s : 8s = 3,75m/s do kwadratu
s= axt do kwadratu : 2
s= 3,75 x 64s kwadratowe :2
s= 120 m
dane:
vo = 0
v = 108 km/h = 108 x1000m/3600s = 30 m/s
t = 8 s
szukane:
a) a = ?
b) s = ?
a) Przyspieszenie:
a = dv/t = v/t = 30m/s /8s
a = 3,75 m/s2
============
b) Droga:
s = at^2 /2 = 3,75m/s2 x(8s)^2 /2 = 240/2 m
s = 120 m
========
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V= 108km/h = 30m/s
a = 30m/s : 8s = 3,75m/s do kwadratu
s= axt do kwadratu : 2
s= 3,75 x 64s kwadratowe :2
s= 120 m
dane:
vo = 0
v = 108 km/h = 108 x1000m/3600s = 30 m/s
t = 8 s
szukane:
a) a = ?
b) s = ?
a) Przyspieszenie:
a = dv/t = v/t = 30m/s /8s
a = 3,75 m/s2
============
b) Droga:
s = at^2 /2 = 3,75m/s2 x(8s)^2 /2 = 240/2 m
s = 120 m
========