ISRO Scientist Mechanical Practice Questions - ISRO Scientist Engineer SC - Mechanical Engineering Exam

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A block of weight 200 N rests on a rough inclined plane making an angle of 30 degrees with the horizontal. If the coefficient of static friction between the block and the plane is 0.4, what is the minimum force parallel to the incline required to prevent the block from sliding down?

30.7 N 69.3 N 100 N 169.3 N

Correct Answer:

30.7 N

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