What is the weight on earth of a girl with a mass of 30kg?
weight=mass*g where g=9.8N/kg
To calculate the weight of an object on Earth, you can use the formula:
Weight = mass × acceleration due to gravity
The acceleration due to gravity on Earth is approximately 9.8 m/s².
So, to find the weight of a girl with a mass of 30 kg:
Weight = 30 kg × 9.8 m/s²
Weight = 294 N
Therefore, the weight of a 30 kg girl on Earth is 294 Newtons.