Question

The first condition of equilibrium of a body is ___

(a) Sum of all force on a body should be zero

(b) Sum of all moments on a body should be zero

(c) Sum of the initial and final force should be zero

(d) Relative difference of forces should be zero

This question was addressed to me in examination.

Question is from Laws of Motion in division Laws of Motion of Physics – Class 11

Answer 1

Correct choice is (a) Sum of all force on a body should be zero

Explanation: The first condition for a body to exist in equilibrium is that the sum of all forces on the body must be zero. Which means that the resultant force on a body should be zero.