Question Detail
Question
For an object in equilibrium, the mathematical condition that must be satisfied is:
Correct Answer
Option B is the correct answer.
Detailed Explanation
Since acceleration a = 0 for an object in equilibrium, Newton's second law ΣF = ma simplifies to ΣF = 0. This is equivalent to the component equations ΣFx = 0 and ΣFy = 0.
Hint
What must the sum of all forces be if there is no acceleration?