1.When the mass of an object is the same, is the total momentum and kinetic energy...

1.When the mass of an object is the same, is the total momentum and kinetic energy preserved? The reason is that?
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2. When the mass of the object is different, is the total momentum and kinetic energy preserved? The reason is that?
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3. When two objects collide, is the amount of impact received by the two objects the same? The reason is that?

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genius_generous answered 1 year ago

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