It is the red line the purple line carries the most the green line is the largest and the smallest is sky blue
I don't think an object can exert a force on itself.
Try it: Get up on a skateboard, and see if you can do anything to yourself that makes you start moving ... without touching anything else.
It'll be easy to tell if you succeed. If you actually do exert an unbalanced force on yourself, then you'll begin to accelerate.
Their combined momentum after they meet is 0 .
Answer:
Night vision is when you can see in the dark or at night like owls
Explanation:
