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InterviewSolution
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In above question 1, find the speed of each speed of each particle, when the separation reduces to half its initial valueA. `sqrt((Gm)/(d))`B. `sqrt((2Gm)/(d))`C. `sqrt((Gm)/(2d))`D. None of these |
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Answer» Correct Answer - A Increase in kinetic energy of both particles = decrease in gravitational potential energy `:. 2((1)/(2)mv^(2))=U_(i)=U_(f)=-(Gmm)/(d)+(Gmm)/((d)/(2))=(Gm^(2))/(d)` `:. v=sqrt((Gm)/(d))`. |
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