Q. A stone is dropped from the window of a bus moving at 60 km/hr. If the window is 196cm high, what is the distance along the track which the stone moves before striking the ground ?
Let's get our units consistent.
Acceleration due to gravity:
Distance to fall:
We need the time to hit the ground, so we need the formula
Now we can calculate the distance down the road it travels in that time. It is
I hope this helps,