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The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is

A) more than 10 N.
B) less than 10 N.
C) 10 N

Respuesta :

abidemiokin

Answer:C. 10N

Explanation:

The applied force needed to maintain a constant velocity is 10N. This is because the moving force acting on the body will always be equal to the frictional force if the velocity of the body is constant.

But note that this is not the case if the body ia accelerating. If the body is accelerating then the frictional force will not be able to overcome the moving force acting on the body and such the moving force will be greater than the frictional force in that regards.

onyebuchinnaji

The applied force needed to maintain a constant velocity is 10 N.

The given parameters;

  • frictional force on the object, Fk = 10 N

The net horizontal force on the object is calculated by applying Newton's second law of motion as shown below;

∑F = ma

[tex]F- F_k = ma[/tex]

where;

  • F is the applied force on the object
  • m is the mass of the object
  • a is the acceleration of the object

At constant velocity, the acceleration of the object is zero.

[tex]F-F_k = m(0)\\\\F-F_k = 0\\\\F= F_k\\\\F = 10 \ N[/tex]

Thus, the applied force needed to maintain a constant velocity is 10 N.

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