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What is the weight of an adult human in newtons (N) that is closest to?
0.5 N
5 N
50 N
500 N
The correct answer is: 500 N
To determine the weight of an adult human in newtons, it’s essential to understand the relationship between mass and weight. Weight is calculated using the formula: Weight (N) = mass (kg) × acceleration due to gravity (9.81 m/s²). An average adult human weighs approximately 70 kg. Using this average mass in the formula, we can calculate the weight: Weight = 70 kg × 9.81 m/s² = 686.7 N. This value is closest to 500 N when comparing it with the provided options. While the average adult's weight in kilograms translates to a significantly higher value in newtons, the choice that most closely approximates an adult human's weight in this context is indeed 500 N. Therefore, this choice reflects a realistic estimation of adult human weight in a physics context, taking into account typical mass values and Earth's gravitational acceleration.