Physics
If a moving car hits an object, the car will either decrease its acceleration or it will stop entierly, which we call the first collision. The car hits the object with some force and the object exeerts the the same force in the opposite direction. The people inside the car have been moving at the same speed as the car, so they will eventually hit the insides of the car, which is the second collision.…
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…outside force acts upon it, which changes its position. Newton's Third laws stat!
es that for every force there is a equal and opposite reaction force. The reaction force has the same magnitude and acts in the opposite direction. The two forces act on diffrent objects and do not cancel one another. Only forces acting on the same object can be added together.
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**Bibliography**
Eisenkraft, A. (1998). Active Physics. p 69
Hewitt, P. Conceptual Physics p 75
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