Final answer:
To determine if the statement regarding four forces being exerted upon Fido during a walk is true or false, one needs additional context about the situation. Common forces like gravity, normal force, tension, and friction could be present, but without specifics, one cannot confidently verify the exact number of forces acting on Fido.
Step-by-step explanation:
The question asks whether the statement, 'At the moment during the walk around the block, there are 4 forces exerted upon Fido' is true or false. Without further context, it's challenging to identify the exact number of forces at play on Fido. In general, common forces that could be acting on Fido while walking could include gravity, normal force, friction, and the tension force from the leash. If these four forces are indeed acting on Fido, then the answer could be true. However, without specifics, one can't definitively say there are precisely four forces without more information.
For instance, Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This implies that if Fido exerts a force on the ground (walking), the ground exerts an equal and opposite force on Fido, which are one pair of action-reaction forces. Additionally, gravity is acting on Fido, pulling him towards the Earth, and the normal force opposes this by pushing upward. If Fido is being walked with a leash, the tension in the leash is another force. Also, there might be friction between Fido's paws and the ground. If all four forces (gravity, normal force, tension, and friction) are present, the statement would be true. However, this is an assumption without more details provided.