InterviewSolution
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InterviewSolution
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Two blocks each of mass m lie on a smooth table. They are attached to two other masses as shown in the figure. The pulleys and strings are light. An object O is kept at rest on the table. The sides AB & CD of the two blocks are made reflecting. The acceleration of two images formed in those two reflecting surfaces w.r.t. each other is: A. `(5g)/(6)`B. `(5g)/(3)`C. `(17g)/(12)`D. `(17g)/(6)` |
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Answer» Correct Answer - D `a_(LHS)=a_(1)=("Net pulling force")/("Total mass")=(3mg)/(4m)=3/4 g` `a_(I_(1))=2a(I_(1)) =3/2 g` `a_(RHS)=a_(2)=("Net pulling force")/("Total mass")=(2mg)/(3m)` `a_(I_(2))=2a(I_(2)) =4/3 g=2/3 g` The relative acceleration is therfore: `(3/2)g+(4/3) g=(17/6)g`. |
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