So if I have two exactly the same rocks and drop one then the other 2 seconds later, how would I find the distance between the two rocks when the first hits the ground? I know the height, let's say it's 40m. I want to know HOW to do this. Would I find time it takes the rocks to hit the ground first since both are the same? Then set each equal? Mostly just having issues with what equations I suppose

# [Physics] How to find distance between two objects in free fall

free fallhomework-and-exerciseskinematicsnewtonian-gravitynewtonian-mechanics

## Best Answer

Find the time it takes for the first rock to hit the ground using your constant acceleration formulas and then sub this time -2 seconds back into your formula to find the position of the second rock at that time.