Question

a body of mass 0.1 kg is pressed against a wall with a horizontal force 5N. if coefficient of friction is 0.5 than find force of friction?

Answer 1

Weight of body=0.1×10=1 N
Maximum frictional force =0.5×5 =2.5 N
Therefore the body can be balanced by 5N force.
Since the body is in equilibrium, weight is balanced by frictional force.
Therefore frictional force =Weight = 1N

Answer 2

hi,

mass of block = 0.1kg

horizontal force(N) =5N

u = 0.5

frictional force = uN

= ( 0.5 ) ( 5 )

= 2.5

therefore the applied force is more than maximum frictional force

so the body is in equillibrium

i.e., Weight (W) = Mg

= ( 0.1 )( 9.8 )

= 0.98

frictional force is equal to weight

which is approximately equal to 1

hope it helps...❤