Respuesta :
The static friction force is a force that prevents motion of an object kept on a surface, due to the interaction of the surface of the object and the surface on which it is kept
- The minimum force required to start the block moving is 14 N
Reason:
The known parameter are;
The weight of the block, W = 35 N
The static friction of the surface of the table surface, [tex]\mu_s[/tex] = 0.40
Required:
To find the minimum force to start the block moving
Solution:
The force required to start the block moving is given by the frictional force that needs to be surpassed
Force required, F = Force of friction
Force of friction = Normal reaction × Coefficient of static friction
On a flat surface, the normal reaction = The weight of the object
∴ Force of friction, [tex]F_f[/tex] = Weight of the object × Coefficient of static friction
Which gives;
[tex]F_f = W \times \mu_s[/tex]
[tex]F_f = 35 \, N \times 0.40 = 14 \, N[/tex]
Force required, F = Force of friction, [tex]F_f[/tex] = 14 N
The minimum force required to start the block moving, F = 14 N
Learn more about the static friction force here:
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