Applied Mechanics - Engineering

Q1:

The centre of gravity of a triangle is at the point where three

A medians of the triangle meet

B perpendicular bisectors of the sides of the triangle meet

C bisectors of the angle of the triangle meet

D none of these.

ANS:A - medians of the triangle meet

Center of gravity is at the medians meeting point because it is equally divided and all are pointing at that. Center of gravity is at center of triangle it is proved by method of finding center of mass. Center of triangle is h/3 for 90° & 2h/3 from vertex.