When you push a cart, it moves. When you stop pushing, it comes to rest. Does this violate Newton’s law of inertia? Defend your answer.
Does this violate Newton’s law of inertia No, other forces such as friction acting on it. The above figure shows the cart moving. In the diagram two figure mentioned system 1 and system 2. The cart would continue in motion, when you stop pushing. But the friction does act, and the cart act. This doesn’t violate the law of inertia because an external force indeed acts.