block A of mass 4 kg is to be kept at rest against a smooth vertical wall by applying a force . the required force is

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Block $A$ of mass $4 k g$ is to be kept at rest against a smooth vertical wall by applying a force $F$ as shown in fig. The force required is $(g = 10 m / s^{2})$

Q. A block of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is

μ

and the acceleration due to gravity is g, what is the minimum force required to be applied by the finger to hold the block against the wall?

Q. A block of mass

2

kg is pushed against a rough vertical wall with a force of

40

N, coefficient force of

15

N, is applied on the block in a direction parallel to the wall.

A block of mass $2 k g$ is pushed against a rough vertical wall with a force of $40 N$ , coefficient of static friction being $0.5$ . Another horizontal force of $15 N$ , is applied on the block in a direction parallel to the wall. Will the frictional force exerted by the wall on the block ?

Q. A block of mass

10 k g

is held at rest against a rough vertical wall

[μ = 0.5]

under the action a force

F

as shown in figure. The minimum value of

F

required for it is

(g = 10 m / s^{2})

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