A bullet is fired from a short gun to shoot a bag of sand. It hits the bag and goes through it.In the given situation, when the builet hits the bag of sand, the total momentum of the bullet

Explanation

When a bullet is fired and passes through a bag of sand, the principle of conservation of momentum applies. Initially, the bullet has a certain momentum based on its mass and velocity. As it hits and penetrates the bag, it transfers some momentum to the sandbag, causing the bullet to slow down. This means the bullet's momentum decreases. The total momentum of the system (bullet plus sandbag) is conserved, but since the bullet loses momentum to the bag, its momentum decreases. Option A is incorrect because the bullet cannot gain momentum in this interaction. Option C is incorrect as the bullet continues to move, maintaining some momentum. Option D is incorrect because the bullet's momentum is reduced as it transfers some to the sandbag.