हिन्दी में पढ़ेंHome › Formulas › Gravitation › Gravitational PE
Gravitational PE
U = −GMm/r
Where: G = gravitational constant (N·m²/kg²), M = mass (kg), U = potential energy (J), m = mass (kg), r = radius / distance (m)
Solved example
Given: G = 7, M = 5, m = 10, r = 4
Find: U (potential energy (J))
- Formula: U = -G·M·m/r
- Substitute the values: U = -10·5·7/4
- Result: U = -87.5 J
Answer: U = -87.5 J
Calculator
How to calculate Gravitational PE
- Write down the formula: U = −GMm/r.
- Note the known values (G, M, m, r).
- Substitute them and simplify to find U.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Gravitational PE?
The formula is U = −GMm/r, where G = gravitational constant (N·m²/kg²), M = mass (kg), U = potential energy (J), m = mass (kg), r = radius / distance (m).
What is Gravitational PE when G = 7, M = 5, m = 10, r = 4?
U = -87.5 J. Substitute the values into U = −GMm/r and simplify.