The gravitational field strength at a distance r from a mass M is given by which formula? (2022)
Practice Questions
1 question
Q1
The gravitational field strength at a distance r from a mass M is given by which formula? (2022)
GM/r^2
Gm/r^2
M/r^2
G/r^2
The gravitational field strength is given by E = GM/r^2.
Questions & Step-by-step Solutions
1 item
Q
Q: The gravitational field strength at a distance r from a mass M is given by which formula? (2022)
Solution: The gravitational field strength is given by E = GM/r^2.
Steps: 4
Step 1: Understand that the gravitational field strength is a measure of the force of gravity experienced by an object at a certain distance from a mass.
Step 2: Identify the variables in the formula: E represents the gravitational field strength, G is the gravitational constant, M is the mass creating the gravitational field, and r is the distance from the mass.
Step 3: Recognize that the formula for gravitational field strength is derived from Newton's law of universal gravitation.
Step 4: Write down the formula: E = GM/r^2, where E is the gravitational field strength, G is a constant (approximately 6.674 × 10^-11 N(m/kg)^2), M is the mass, and r is the distance from the mass.
