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sunny shah Grade: 12
        

A 10kg block is placed on 40 kg block.a force of 200N is applied on small block.If  coefficient of static and kinetic friction are 0.4 and 0.6 respectively.then find the accelaration of the system.

6 years ago

Answers : (2)

sonika p
18 Points
										

where is the friction acting between the blocks or between block and ground. check ur question how can coefficient of kinetic friction greater than static

6 years ago
vikas askiitian expert
510 Points
										

at upper block  ,static friction force is less than force applied


  so the kinetic friction now acts on the block


 at upper block  ,


                         F-uk10g =10a


 accleration of small block           a= 200-60/10=14


  now this friction force becomes driving force for the bigger block


     accleration of bigger block  a1=60/50=1.2


 

6 years ago
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