thinking distance and braking distance

好似你揸車
你見到前面有一個人
咁你一定會停車ga啦

但係起你識得踩個brake之前
你係要時間把呢個message--->"前面有個人"傳到去個腦杜
咁傳到之後又要諗點做

咁由你見到個人---->你去踩brake個陣呢....係大約有0.2秒既
但係....如果你係以高速行使....就算係0.2....你以經行到好遠了
eg. 你以80km/h行使
= 80/3.6 * 0.2
= 4.44m
注意: 3.6係用黎由km/h 轉到m/s

咁呢個就係thinking distance

2. braking distance
其實就係由你踩brake --->車停既

假如你既acceleration係 -4 m/s-2
咁你既braking distance就係(
(-22.2*2)/ 2*(-4)
= 61m<--大約
22.2m/s = 80km/h
係用v*2-u*2 = 2as 黎計

*thinking distance + braking distance就係 stopping distance啦

有咩關係同分別
其實好難答你

結論:
thinking distance 同braking distance係兩樣野
但係佢地+埋就係stopping distance囉