Find the radius of an equilateral triangular plate about its median. Side of triangular is l.

Triangular Lamina About Its Base

Three charges q, q, and -2q are fixed on the vertices of an equilateral triangular plate of edge length a. This plate is in equilibrium between two very large plates having surfaces charge density sigma_1 and sigma_2 , respectively. Find the time period of small anglular oscillations about an axis passing through its centroid and perpendicular to the plane. Moment of inertia of the system about this axis is l.

The area of a equilateral triangular park is equal to 5 sqrt(3) times the area of a triangular field with sides 18 m, 80 m and 82 m. What is the side of the triangular park?

Find the centre of mass of a triangular lamina.

Find the centre of mass of a triangular lamina.

Find the centre of mass of a triangular lamina.