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Grade: 11
        
A man hold a book weighing 1kgwt between his hand and keeps it from falling by pressing both hand against the book with a force of 2.5kgwt each.Find coefficient of friction between book and hand.plz solve it by attaching a pic of FBD of this question.
3 months ago

Answers : (1)

Atul Nagar
33 Points
							
The weight of book is acting downward while a horizontal force of 2.5 kgwt is holding the book. Book is also applying normal reaction N of 2.5 kgwt on hand.
therefore  mg = frictional force, f
mg = n N ;   n = coeffeicient of friction
n = 1/(2.5) = 0.4
 
 
 
3 months ago
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