Question

A force is applied to a box to move it to the right across the kitchen floor.

Answer 1

Question: A force is applied to a box to move it to the right across the kitchen floor. What forces are present?

Answer:

The static "frictional force" and the "kinetic friction" will act on the box.

Explanation:

As we know when the box will start moving a static frictional force will act on it, having a maximum value which is given as

$F_{s}max} = \nu_{s}N$

Once its starts moving the kinetic friction comes into the scene.

$F_{k} = \nu_{n}N$

Kinetic friction acts between the moving surfaces. An object which is moving over the surface will experience a force that will work opposite to the direction of the movement.

Answer 2

The force(s) that would act on the box  are ;

• Frictional forces ( kinetic and static ) and
• Applied force

The kinetic force is the force acting between the box and the surface when a force that moves the box horizontally across the surface is applied. while the static frictional force is the force between the box and the surface when the object comes to a stop/rest.

Both forces ( kinetic and static ) are classified as frictional forces but they act at different times on the box. ( i.e. static force acts when the box comes to a stop/rest while kinetic force acts between the box and surface when the box is in motion. )

Hence we can conclude that the forces that would act on the box  are ; frictional forces and applied force

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