A ball is dropped from a building, after 2 sec another ball is thrown downward. After 6 sec the second ball overtook the first ball. Is the second ball has greater acceleration than the first ball? Explain.

Answer 1

h1=1/2 g t^2
h2=vi*(t-2)-1/2 g (t-2)^2

but at t=6, h1=h2

set them equal, you can solve for vi.

Now, that is not the question: both are accelerating downward due to gravity, which is exactly the sam.