How does newton's second law of motion provide proof for first law of motion ? Explain ?
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Rate of change of momentum only occurs in direction in which the force is applied, which means that an external force is applied on the body which was in state of rest earlier. Thus, proving that a body remains in state of rest/motion untill an external force is applied.
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Newton's second law of motion states that the acceleration of a system is directly proportional to and in the same direction as the net external force acting on the system, and inversely proportional to its mass. In equation form, Newton's second law of motion is a=Fnetm a = F net m .
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