Understanding the Concepts
* Force of Gravity: On Earth, gravity pulls objects downwards with a force called weight. This force is calculated using the formula:
* Weight (Force) = Mass x Acceleration due to Gravity
* Acceleration due to Gravity: On Earth, the acceleration due to gravity is approximately 9.8 m/s².
Calculations
1. Calculate the weight (force) of the object:
* Weight = 20 kg * 9.8 m/s² = 196 Newtons (N)
Conclusion
You would need to apply a force of 196 Newtons upwards to lift the 20kg object on Earth. This force needs to be equal to or greater than the object's weight to overcome gravity.
