The second time, the car moved in the same way, but it broke down suddenly after 5 seconds. The next car stopped on the side of the road and then transported. The handover time was 20 seconds. The latter car also started with the original acceleration, Now, in order to make the car still arrive at the ambulance station at the scheduled time, what is the final uniform speed of the car?

V1=at1=2x5=10M/S
S1=1/2at1xt1=25m
S2=vt=10m/sx100s=1000m
S=S1+S2=1025m
S3=S-S1=1025-25=1000m
t1=100s-20s=80s
V2=S3/t1=1000m/80s=13.25m

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