Question

A block a with mass 100 kg is resting on another block the of mass 200 kg a horizontal rope tied to a wall hole is it the coefficient of friction between a and b is 0.2 World cup official of friction between B and the ground is 0.3 the minimum requirement required force to start moving be will be​

Answer 1

Answer: 1100 N

Explanation:Hope this helps

Answer 2

Answer: There is minimum requirement of 80 N force.

Explanation:

Since we have given that

Mass of first block 'a' = 100 kg

Mass of second block 'b' = 200 kg

coefficient of friction between a and b = 0.2

coefficient of friction between b and ground = 0.3

So, the minimum requirement required force to start moving be

Force is given by

$mass_A\times coefficient_{A\ to\ B}+mass_B\times coefficient_{B\ to\ ground}\\\\=100\times 0.2+200\times 0.3\\\\=20+60\\\\=80\ N$

Hence, there is minimum requirement of 80 N force.