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2009-12-19T14:53:15+01:00

V₀ = 10 m/s
V = 20 m/s
s = 300m
a = ? t = ?
s = V₀t + at²/2

V = V₀ + at

V -V₀ = a *t

a = V - V₀/t

 

s = V₀t + (V - V₀/t) * t²/2

s = V₀t + (V - V₀) * t/2

 s = V₀t + Vt - V₀ t/2

s = 2V₀t +Vt -V₀t/2

s = V₀t +Vt/2

2s = t(V₀+V)

t = 2s /V₀+V

t = 600m/30 m/s

t = 20 s

a = V - V₀/t

a = 10 m/s /20 s

a = 0,5 m/s²




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