Question

A horizontal force of 20 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and wall is 0.3. The weight of the block is

• A. 20 N
• B. 10 N
• C. 6 N
• D. 3 N

Answer 1

The correct option is C 6 N

We know that weight of the block (W)
= Frictional force
=$\mu N$
$=0.3\times 20$
= 6 N