Odpowiedzi

2009-12-05T23:02:32+01:00
Fw = Fz - T
Fz = mgsinα
T = mgfcosα

S=½at² => a=2s/t²
V=at => V=(2s/t²)*t
V = 2s/t => t = 2s/V
t=1,5 [s]

a = Δv/Δt = 3,12/1,5 [m/s²]

ma = mgsinα - mgfcosα
a=gsinα - gfcosα
f = (gsinα-a)/gcosα
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