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Oefening 30, blz. 43 Parachutespringer
Valweg s na t seconden : s(t)=30+6t-30.(0.223)^t
Bepaal
a) snelheid v
b) beginsnelheid in m/s en km/u
c) vertraging a
d) vertraging na 1 en na 3 seconden
e) Snelheid neemt af tot ongeveer ... ?