5. Define momentum of a body. Explain the principle of conservation of momentum
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mechanical energy as kinetic energy+potential energy
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momentum is the quantitiy of motion of the moving body. it is expressed mathematically p=m×v . and in si system the unit is kg m/ s
Explanation:
the principal of coservation of momentum state that it is an isolated system two objects that colloide having the same momentum before and after the colloison that Is momentum is not destroyed in colloision but transferred between two objects
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