Question

please answer the above question fast

Answer 1

For equillibrium

F⩽ 0.2 N , where n is normal reaction

for max value of f

F= 0.2 mg (becoz n = mg) (m is mass of block a)

F = O.2 x 2x 10 (g=10)

F=4 N

but here force is provided by weight of block b)

F = Mg (where M is mass of block b)

4 =M x 10

M=0.4 kg

hope thats the right ans