A black of mass 1.5kg placed on a rough horizontal surface is pulled by a constant horizontal force of 1.2kg wt. the cofficient of friction between the block and the surface is 0.3. Find acceleration produced in terms of g.
(Posted by Ankur Srivastava)
Applied force, F=1.2 kg wt = 1.2g N (where g is the acceleration due to gravity)
Friction f=µmg=0.3 x 1.5 x g=0.45g N
The net force = ma
=> 1.5 x a = 1.2 g -0.45g=0.8 g
a = (0.8/1.5)g