Question

訪客

不懂這題的加速度怎麼用，accelarates from rest at 0.5m/s^2 是什麼意思，這題的的答案該如何求得？

4. The length of atrain is 44 m. Its front is 100 m from a pole. It accelerates from Test at 0.5
m/s?2: (a) How long does it take to go past the pole? (b) At what speeds do its front and Tear
pass the pole? [Ans 43: (a) 人三48s; (b) 10 m/s, 12 m/s