InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Fqual net forces ant on two different block (A) and (B) masses (m) and 4(m) respectively For same displacement, identify the correct statement.A. Their kinetic energies are in the ratio `(K_(A))/(K_(B)) = (1)/(4)`B. Their speeds are in the ration `(v_(A))/(v_(B)) = (1)/(1)`C. Work done on the block are in the ratio `(W_(A))/(W_(B)) = (1)/(1)`D. All of the above |
|
Answer» Correct Answer - C `W =FS` `F` and `S`are same. Therefore, `W_(A)/K_(B)=1/1` From work energy theorem, `K_(A)/(K_(B))=W_(A)/(W_(B))=(1)/(1)` `1/2 m_(A)v_(A)^(2) =1/2 m_(B) v_(B)^(2)` `:. (v_(A))/v_(B) =sqrt((m_(B))/(m_(A))) =2/1`. |
|