Final answer:
Since the surface is frictionless, the resulting frictional force on the box due to a 25.46 N horizontal force applied by the monkey will be zero, as frictional forces are not present without friction.
Step-by-step explanation:
If a monkey applies a horizontal force of 25.46 N to a box on a frictionless surface, the resulting magnitude of the frictional force on the box by the surface is zero. This is because frictional forces only arise when there is friction between two surfaces; the question states the surface is frictionless. Therefore, the concept of friction does not apply in this scenario.
In a situation where there is friction, the friction force can be calculated using the coefficient of friction and the normal force. The frictional force opposes the direction of movement and can be either static or kinetic, depending on whether the object is at rest or in motion, respectively. However, it is crucial to note that in this particular case, as the surface is frictionless, no frictional force will act on the box regardless of the magnitude of the force applied by the monkey.