Ile czasu zajmie hamowanie samochodu jadącego z V 90 km/h, jeśli a= -5m/s2
dane:
vo = 90 km/h = 90*1000m/3600s = 25 m/s
v = 0
a = 5 m/s² - opóźnienie
szukane:
t = ?
a = Δv/t
a = v/t I*t
a*t = v /:a
t = v/a
t = 25m/s/5m/s²
t = 5 s
---------
Odp. Czas hamowania wynosi 5 s.
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dane:
vo = 90 km/h = 90*1000m/3600s = 25 m/s
v = 0
a = 5 m/s² - opóźnienie
szukane:
t = ?
a = Δv/t
a = v/t I*t
a*t = v /:a
t = v/a
t = 25m/s/5m/s²
t = 5 s
---------
Odp. Czas hamowania wynosi 5 s.