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Two blocks A and B of mass 6kg and 3g respectively are placed on a smooth surface of an elevator in such a way that B is placed above A.The coefficient of friction between the two blocks is 1/4 and the elevator is ascending up with acceleration g/3.A horizontal force 10N is applied on A. Find the accelerations of the blocks w.r.t. the elevator.

Two blocks A and B of mass 6kg and 3g respectively are placed on a smooth surface of an
elevator in such a way that B is placed above A.The coefficient of friction between the two
blocks is 1/4 and the elevator is ascending up with acceleration g/3.A horizontal force 10N
is applied on A. Find the accelerations of the blocks w.r.t. the elevator.

Grade:12th pass

2 Answers

Lokesh
21 Points
10 years ago
10/9 normal force b/w blocks is 4g so max. friction force will be g=10 use concept accleration should be same for no friction force b/w blocks for calculating friction force
Nirmal Singh.
askIITians Faculty 44 Points
10 years ago

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Thanks & Regards,
Nirmal Singh
Askiitians Faculty

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