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do 2 objects that have the same kinetic energy necessarily have the same momentum? I cant think of a simple example :yuck:
Consider a 5 kg mass going at 50 m/s, thus having 6.25 kJ of kinetic energy. Now, a mass of 125 kg going 10 m/s also has 6.25 kJ of kinetic energy. However, the first object has a momentum of 250 kg*m/s, and the second has 1250 kg*m/s of momentum.wilmerena said:do 2 objects that have the same kinetic energy necessarily have the same momentum? I cant think of a simple example :yuck:
Think about it. For a simple object:wilmerena said:what if they both have 0 momentum, so does it follow that the kinetic energy of the system doesnt have to be zero as well? or does it?