Two identical rollers each of mass 100 kg,are on a rough horizontal ground.Two persons A and B are moving these rollers on the ground with the same horizontal acceleration of 1 ms-2,along the ground.Thecoefficient of static friction between the roller and ground is 0.25 and kinetic friction is 0.20.A is pulling it at 30 degree with the horizontal and B is pushing it at 30 degree with horizontal.what is the net force acting on the rollers used byA and B?

JRP , 6 Years ago

Grade 12