AP EAMCET Engineering 20 Apr 2019 Shift 2 Paper

A disc of mass 100 gram slides down from rest on an inclined plane of 30° and comes to rest after travelling a distance of 1 m along the horizontal plane. If the coefficient of friction is 0.2 for both inclined and horizontal planes, then the work done by the frictional force over the whole journey, approximately, is (Acceleration due to gravity =10 ms−2)