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A system consisting of two objects has a total momentúm of (18 kgm/sec)i and its center of mass has the velocity of (3m/s)i .One of the object has the mass 4kg and velocity (1.5m/s)i . The mass and velocity of the other objects are |
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Answer» tion:SolutionTotal momentum=(18 kgm/sec)ivelocity of Center of mass=(3 m/s)i.Mass of one OBJECT=4 kgVelocity of this object=(1.5 m/s)ilet m be the mass of other OBJECTAND V be the velocityNow we know total momentum =Total massX velocity of center of mass(18 kgm/sec)i=(m+4)(3 m/s)i.or m=2 kgNow Vcm=(m1v1+m2v2)/(m1+m2)or3i=(4*1.5i + 2v)/6or 18i=6i+2vv=6i m/sechence a is CORRECT |
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