Force of Gravity Formula:
From: | To: |
Definition: This calculator computes the gravitational force acting on a mass using Newton's second law of motion.
Purpose: It helps physics students, engineers, and scientists calculate the force exerted by gravity on an object with a given mass.
The calculator uses the formula:
Where:
Explanation: The mass is multiplied by the gravitational acceleration to determine the force exerted by gravity.
Details: Understanding gravitational force is fundamental in physics, engineering, and many practical applications like construction and aerospace.
Tips: Enter the mass in kilograms and gravitational acceleration (default 9.81 m/s² for Earth). All values must be > 0.
Q1: What is the standard value of g on Earth?
A: Approximately 9.81 m/s², though it varies slightly by location (9.78-9.83 m/s²).
Q2: How would I calculate force on other planets?
A: Use the specific gravitational acceleration of that planet (e.g., 3.71 m/s² for Mars).
Q3: What's the difference between mass and weight?
A: Mass is the amount of matter (kg), while weight is the force exerted by gravity (N) on that mass.
Q4: Can I use pounds for mass?
A: No, the calculator requires mass in kilograms. Convert pounds to kg (1 lb ≈ 0.4536 kg).
Q5: Why is the result in Newtons?
A: Newton is the SI unit of force (1 N = 1 kg·m/s²).