Which hactivity would BEST demonstrate the Law of Action/Reaction? Scroll More A lody pushing a grocery cart. A soccer ball sitting on the ground. A rocket launching to space. A car traveling down the road.

## Step 1<br />The Law of Action/Reaction, also known as Newton's Third Law of Motion, states that for every action, there is an equal and opposite reaction. This means that any force exerted on an object will result in a force of equal magnitude but in the opposite direction exerted back.<br /><br />## Step 2<br />Let's analyze each of the given options:<br /><br />1. A lady pushing a grocery cart: This scenario involves a force exerted by the lady on the grocery cart. However, the reaction force is not explicitly mentioned, making it less clear how the law is demonstrated.<br /><br />2. A soccer ball sitting on the ground: In this case, there is no action-reaction pair being demonstrated. The ball is stationary, and there is no force being applied.<br /><br />3. A rocket launching to space: This is a classic example of the Law of Action/Reaction. The action is the rocket expelling gas out of its engines. The reaction is the force of the expelled gas pushing the rocket upwards. This is how rockets are able to lift off the ground and travel to space.<br /><br />4. A car traveling down the road: While there are forces acting on the car (like gravity and the force exerted by the car's engine), this scenario does not clearly demonstrate an action-reaction pair as described by the law.<br /><br />## Step 3<br />Based on the above analysis, the scenario that best demonstrates the Law of Action/Reaction is the rocket launching to space.