please answer this question with appropriate citation Thank you. 1)What is the d

Question

please answer this question with appropriate citation Thank you.
1)What is the definition of momentum and how is itcalculated? 2)What are the differences and similarities between momentumand energy? when would you use each to analyze a situation? 3)What is impulse? how is it related to momentum? 4) how are force and time intricately related to each other ina collision? use examples of safety equipment from automobiles. howwould the graphs of force versus time change for a more elasticstring and for a less elastic string? what would be different? whatwould be the same? 5) How is the impulse-momentum theorem just a restatement ofNewton's Second Law?
1)What is the definition of momentum and how is itcalculated? 2)What are the differences and similarities between momentumand energy? when would you use each to analyze a situation? 3)What is impulse? how is it related to momentum? 4) how are force and time intricately related to each other ina collision? use examples of safety equipment from automobiles. howwould the graphs of force versus time change for a more elasticstring and for a less elastic string? what would be different? whatwould be the same? 5) How is the impulse-momentum theorem just a restatement ofNewton's Second Law?

Explanation / Answer

   1)     When an object is moving, it has a non-zero momentum. Ifan object is standing still ,
        then its momentumis zero.
                   To calculate the momentum of a movingobject multiply the mass of the object times
       its velocity. The symbolfor momentum is a small p.

2)      When there are collisions,the effect depends on mommentum of the bodies and not          kineticenergy. similarly when two bodies arekept in contact with each other, the flow of heat  
         energy depends ontemperature and not heat energy. similar-amount of air andpressure, water
         level and amountof water.

3)    A large force acting for a very shortinterval of time is called impulsive force .
      change in momentum is equal toimpulse

5)    Law of Conservation of momentum
               When the resultant external force acting on the system is zero , the total momentum of
       the system remainsconstant .   
                      F ext = dP / dt   = 0

      

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