an object of mass 2kg moving with a velocity of 3ms collides head on with another object of mass 1kg moving in the opposite direction with a velocity of 4ms the object stick together after collision,calculate their common speed
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momentum of first object 6kgm/s
momentum of second object -4kgm/s
it will move along the direction of first object with -2/3kgm/s
momentum of second object -4kgm/s
it will move along the direction of first object with -2/3kgm/s
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