Answer:
Weight = normal force = 24.5 N
Step-by-step explanation:
Given that,
Mass of a dog, m = 2.5 kg
We need to find its weight and the normal force that it feels.
The weight of an object is given by :
W = mg
Where g is the acceleration due to gravity

The normal force is balanced by the weight of an object. So,
Weight = normal force = 24.5 N