A small coin is sliding toward a large block. In which of the following scenarios would the momentum for coin-block system NOT be conserved? Question 17 options: a) If the coin and the block were initially moving in opposite directions. b) If the coin and the bock were in a weightless environment. c) If the coin recoils backwards after colliding with the block. d) If the coin becomes stuck inside the block. e) If the coin slides across a table with a high coefficient of friction