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A box sits on a horizontal wooden board. The coefficient of staticfriction between the box and the board is 0.5. You grab one end of theboard and lift it up, keeping the other end of the board on the ground.What is the angle between the board and the horizontal direction whenthe box begins to slide down the board?

sachin singh , 14 Years ago
Grade 12
anser 1 Answers
SAGAR SINGH - IIT DELHI

Last Activity: 14 Years ago

Dear sachin,

The critical angle is determined by the condition:

From this equation we can find an angle .

 

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