$Statement-1 :$If we want to throw a bottle from a moving train so that danger of being broken on hitting ground is least. We should throw bottle in forward direction.

$Statement-2 :$While jumping out from side of a moving carriage it is safer to jump in forwards direction.

$Statement-1$ is true, $Statement-2$ is true and $Statement-2$ is correct explanation for $Statement-1$.

$Statement-1$ is true, statement-2 is true and $Statement-2$ is NOT the correct explanation for $Statement-1$.

$Statement-1$ is true, $Statement-2$ is false.

$Statement-1$ is false, $Statement-2$ is true.