Rotation 5 Question 7
17. A cubical block of side rests on a rough horizontal surface with coefficient of friction . A horizontal force is applied on the block as shown. If the coefficient of friction is sufficiently high, so that the block does not slide before toppling, the minimum force required to topple the block is
(2000)
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Answer:
Correct Answer: 17. (c)
Solution:
- At the critical condition, normal reaction
will pass through point . In this condition, about the block will topple when
Therefore, the minimum force required to topple the block is