Answer 4 please
 
Q. 4  A block of mass 15 kg is resting on a rough inclined plane as shown in figure. The block is tied up by a horizontal string having a tension of 50 N. Calculate the coefficient of friction between the block and the inclined plane. 

Dear student 
as there tension is parallel to the horizontal which is equal to 50N 

take components of tension along the incline and perpendicular to the incline 
components of tension perpendicular to the incline increases the value of normal reaction hence increases the value of friction .



 

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