1
v0=5m/s,a=2m/s^2,v=15m/s
v=v0+at
15=5+2*t
t=(15-5)/2=5s
2
L=v1t+v2t=(v1+v2)t=(5+4)x=9x
3
L=26,v1=3.5,t=4
L=(v1+v2)t
26=(3.5+v2)*4
v2=26/4-3.5=6.5-3.5=3 km/h
1
v0=5m/s,a=2m/s^2,v=15m/s
v=v0+at
15=5+2*t
t=(15-5)/2=5s
2
L=v1t+v2t=(v1+v2)t=(5+4)x=9x
3
L=26,v1=3.5,t=4
L=(v1+v2)t
26=(3.5+v2)*4
v2=26/4-3.5=6.5-3.5=3 km/h