Final answer:
The problem involves principles of forces and motion in physics, specifically Newton's laws. Assuming the shopping cart is pushed at a constant velocity, the net force on the cart is zero. This outcome is derived from both Newton's First and Second Laws.
Step-by-step explanation:
The task involves understanding the principles of physics, particularly regards to forces, motion, and Newton's laws. Here, a person is pushing a 23.4 kg shopping cart for a certain distance on a flat surface. The information provided is not very precise, but the focus should be on key principles of physics: Newton's laws, especially the first and the second law.
Based on Newton's First Law, an object in motion stays in motion at a constant velocity unless acted upon by an external net force. Given that the shopping cart is pushed at a constant velocity means that the net force on the cart is zero.
Newton's Second Law states that the net force on an object equals its mass times its acceleration (F=ma). Since the velocity is constant and there is no change in direction talked about, the cart is not accelerating, which also reinforces that the net force on the cart is zero.
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