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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
1. |
A block of weight `100N` is lying on a rough horizontal surface.If coefficient of friction `1/sqrt3`.The least possible force that can move the block isA. `100/sqrt3N`B. `100sqrt3 N`C. `50sqrt3 N`D. `50N` |
Answer» Correct Answer - D<br>`F=(mu_(s)mg)/sqrt(mu_(s)^(2)+1)` | |
2. |
A block is sliding on a rough horizontal surface. If the contact force on the block is `sqrt2` times the frictional force, the coefficient of friction isA. `0.25`B. `1/sqrt2`C. `sqrt2`D. 1 |
Answer» Correct Answer - D<br>`R=sqrt(N^(2)+f^(2)),N=mg` | |