Question

A block of weight 20 N is pressed against a vertical wall as shown in figure by applying a horizontal force of the block (g = 10 ms?). If coefficient of kinetic friction = 0.4 then
The least horizontal force required to keep the block in rest is
a) 40 N
b) 20 N
c) 10 N
d) 50 N
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Answer 1

$\sf\underline\pink{Solution:}$

A block of weight 20 N is pressed against a vertical wall as shown in figure by applying a horizontal force of the block (g = 10 ms?). If coefficient of kinetic friction = 0.4 then

The least horizontal force required to keep the block in rest is

a) 40 N

b) 20 N

c) 10 N

d) 50 N

$\sf\underline\red{Thanks}$

Answer 2

Explanation:

above one is the answer once check