- #1

ejacques

- 3

- 0

- Homework Statement
- when a high-speed train suddenly begins to decelerate at -5 (m/s^2), a kid sleeping on the upper bunk 3 meter above the floor falls off. where does he land?

- Relevant Equations
- y=-0.5*g*t^2

I think, since the train is decelerate the kid will fall off at free falling. the time for that is:

y=0.5*9.8*t

Now i think i need to find what is the distance the train is doing in this time, but i can't figure this out.

y=0.5*9.8*t

^{2}⇒ t=√(2*y/g)=√(2*3/9.8)=0.8sec.Now i think i need to find what is the distance the train is doing in this time, but i can't figure this out.