Physics

To calculate the work done by the frictional force, we need to analyze the forces acting on the object and determine the work done by each force involved in the motion.

 

Analyze the forces acting on the object

The object is moving at a constant speed, meaning the net force along the incline is zero (no acceleration). Therefore, the forces acting along the incline must balance out.

 

The forces acting on the object:

The upward applied force (parallel to the incline),

The frictional force , acting opposite to the direction of motion,

The component of the gravitational force acting parallel to the incline .

 

Where:

(mass of the object),

(acceleration due to gravity),

(angle of the incline).

 

The gravitational force component parallel to the incline is:

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