V(0)=S/t=20/4=5m/c
V=0
a=V(0)/t=5/10=0.5m/c^2
S=S(0)+V(0)t-at^2/2=20+5*10-0.5(10)^2/2=45m
S(2)=S-S(1)=45-20=25m
ответ:0.5m/c^2, 25m
V(0)=S/t=20/4=5m/c
V=0
a=V(0)/t=5/10=0.5m/c^2
S=S(0)+V(0)t-at^2/2=20+5*10-0.5(10)^2/2=45m
S(2)=S-S(1)=45-20=25m
ответ:0.5m/c^2, 25m