Write down 5 things you havent done yet but want to do please tell me the answer

i think idk if im right but i think its d

i would believe it would be b., the author wants to draw the reader deeper into the experience

two 125 kg bumper cars are moving toward each other in opposite directions. car x is moving at 10 m/s and car z at −12 m/s when they collide head-on. if the resulting velocity of car z after the collision is 10 m/s, what is the velocity of car x after the collision?