Van Length 4 m
Lane width 3.7m
Van 0-60 mph 7.5 second, therefore calculate Van Acceleration : 3.56 (m/s**2)
With equation of
x = v0t + ½at2
Where:
x = displacement
v0 = initial velocity
a = acceleration
t = time
1.The time of the Van pass the first lane fully (3.7+4m) is
t=2.079
Bus travels 73 m (speed of 80 mph)
2.The time of the Van pass the first lane fully (7.4+4m) is
t= 3.56
Bus travels 90 m (speed of 80 mph)
从数上看,Van起步进入主路时候,Bus里路口已经非常近了
如果是第一个lane撞到中部,那距离是非常非常近了,比如30m