To determine the frictional force acting on the object, we can use the formula:

Frictional force (Ffr) = Applied force (Fapplied) - Net force (Fnet)

Given information:

Applied force (Fapplied) = 5.0 N

Mass of the object (m) = 6.0 kg

Speed of the object (v) = 2.5 m/s

First, let's calculate the net force acting on the object. Since the object is moving at a constant speed, the net force is zero (Fnet = 0) because the forces are balanced.

Fnet = 0

Next, let's calculate the frictional force using the formula mentioned earlier:

Ffr = Fapplied - Fnet

= Fapplied - 0

= Fapplied

Therefore, the frictional force acting on the object is equal to the applied force, which is 5.0 N.