when a moving object hits something, what is the most important factor in determining how hard it hits?\na…

when a moving object hits something, what is the most important factor in determining how hard it hits?\na gravity\nb traction\nc distance traveled\nd speed
Answer
Brief Explanations:
The force of impact when a moving object hits something is related to its momentum. Momentum is mass times velocity (speed in a given direction). A higher - speed object has more momentum and thus hits harder. Gravity affects the weight and vertical motion under free - fall, traction is related to friction between surfaces, and distance traveled doesn't directly determine the impact force at the moment of collision like speed does.
Answer:
D. speed