1) t=5 c s=40 м
s=a*t²/2 ----> a=2*s/t²=2*40/25=3.2 м/с²
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2) t=20 c Δv=19 м/с
a=Δv/t=19/20=0.95 м/с²
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1) t=5 c s=40 м
s=a*t²/2 ----> a=2*s/t²=2*40/25=3.2 м/с²
=================
2) t=20 c Δv=19 м/с
a=Δv/t=19/20=0.95 м/с²
=============================