Question

The value of frictional force on block in the given diagram is take g=10m/s2

Answer 1

Answer:

In the given figure,

taking (A+B) as system

fs max between surface of B and earth is 120N

∴ The block will not move

∴ There is no acceleration of any block

∴ Net force on block is zero

frictional force on A=0N

and frictional force on B=80N

Answer 2

Answer:

B=80

Explanation:

In the given figure,

taking (A+B) as system

fs max between surface of B and earth is 120N

..The block will not move

..There is no acceleration of any block

.: Net force on block is zero frictional force on A=ON

and frictional force on B=80N