Which of the following statements are true? 1.When a moving object explodes, its

Question

Which of the following statements are true?

1.When a moving object explodes, its center of mass gains the energy of the explosion.

2.If the kinetic energy of an object does not change, its momentum can not change.

3.The center of mass of an object must always lie within the object.

4.What elastic, inelastic and fully inelastic collisions have in common is that momentum is conserved in all three dimensions.

5.In an inelastic collision between two objects the velocity of the center of mass can change.

Explanation / Answer

1.true

2.false

3.false

4.true

5.false

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