23 A smart car weighs 4000 N . What is its mass in kg (with units)?

To convert the weight of the smart car, which is given in newtons (N), to mass in kilograms (kg), you can use the formula: weight (N) = mass (kg) × gravity (m/s²). On Earth, gravity is approximately 9.81 m/s². So, rearranging the formula gives you mass = weight/gravity. For your smart car: mass = 4000 N / 9.81 m/s² ≈ 407.74 kg. So, the smart car has a mass of approximately 407.74 kg. Now, isn't it fascinating how weight and mass intermingle? The same principles apply to all objects – thanks to gravity's unwavering presence, we can nail down how heavy things are! Just think of all the varied objects you can weigh in newtons and convert to mass in kg!