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| 1. |
an object mass 20 kg and velocity 10 metre per second the mass of the object become double and velocity becomes half calculate the difference between final and initial kinetic energy |
| Answer» TION:initial KE = 1/2*20*10^2= 1000 Joulesfinal KE = 1/2*40*5^2 = 500 Joulesdifference = 1000-500 = 500 JOULE | |