1. The problem statement, all variables and given/known data In which one of the following situations is linear momentum not conserved? A) A bomb suspended by a string explodes into one hundred fragments. B) A bowling ball collides with ten pins. C) A golf ball is struck by a club. D) An astronaut floating in space throws a hammer away and subsequently moves in the opposite direction. E) A tree limb is struck by lightning and falls to the ground. 2. Relevant equations Momentum=mass(velocity) 3. The attempt at a solution I have no idea... I thought momentum was always conserved? Can someone help explain this please? Thanks!!!