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Grade 8Mechanics

in a children park an inclined plane is constructed with an angle incline of 45 degree . find the acceleration of a boy sliding on it if the friction coefficient between cloth of the boy and the incline is 0.6 and g is 10m/s2

Profile image of Lokesh
8 Years agoGrade 8
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1 Answer

Profile image of Arun
8 Years ago
 

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force balance in the direction perpendicular to inclined plane
N = mg cos 45
equation of motion in the direction of inclined plane
mg sin45-μN =ma
or  mg sin 45 -μmgcos45 =ma
or a = g(sin45-μcos45)
    =2 √2
Regards
Arun (askIITians forum expert)