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| 1. |
The mass of A is two times the mass of B if they move with the same momentum .what is the ratio of the kinetic energy of A to that of B. |
| Answer» EXPLANATION:m1v1=m2v2 v2v1=m1m2 Now, for RATIO of KINETIC ENERGY, we have KE2KE1=21m2v2221m1v12 =(m2m1)(v2v1)2 =(m2m1)(m1m2)2 =m1m2 | |