Answer:
Explanation:
Given
Mass of car A
Mass of car B
velocity of cart A=3 m/s
velocity of cart B=-7 m/s
Conserving momentum
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D, you wanna know why.... cause I looked it up
Hey there! My name is Christy and I'm gladly to help you out!
The three main forces that stop moving objects are friction, gravity and wind resistance. Equal forces acting inopposite directions are called balanced forces. Balanced forcesacting on an object will not change the object's motion. When you add equal forces in opposite direction, the netforce is zero.
Hope this helped!
I think it is that protons are stuck with the neutrons in a strong force that is in the nucleus
