Understanding the Concepts
* Gravity: A force that pulls objects towards each other. The more massive an object, the stronger its gravitational pull.
* Gravitational Acceleration (g): On Earth, this is approximately 9.8 m/s². It means that for every second an object falls, its downward velocity increases by 9.8 meters per second.
Formula
The force of gravity (F) on an object is calculated using the following formula:
F = m * g
Where:
* F is the force of gravity (measured in Newtons, N)
* m is the mass of the object (measured in kilograms, kg)
* g is the acceleration due to gravity (approximately 9.8 m/s²)
Calculation
1. Substitute the values:
F = 45 kg * 9.8 m/s²
2. Calculate:
F = 441 N
Answer: The gravitational force on a student with a mass of 45 kg is approximately 441 Newtons.
