Question

Find the centre of mass of a triangular lamina

Answer 1

hey mate here is your answer

For any planar solid, centre of mass always lies at its geometrical centre.
Geometrical centre of a triangle is intersection point of its media.
So, for any given triangular lamina



Centre of mass is at its centroid, point of intersection is media.

I hope this helps you
please mark my answer as brainliest

Answer 2

HEYA MATE HERE U GO.

❤. The lamina ( LMN ) may be subdivided into narrow strips each parallel to the base (MN)

• By symmetry each strip has its centre mass at its midpoint .
• If we join the midpoint of all the strips we get the median L.P
• The centre of mass of the triangle as a whole therefore, has to lie on the median L.P.
• similarly, we can argue that it lies on the median MQand NR .
• This means the centre of mass lies on the point of concurrence of the medians , i.e., on the centroid G of the triangle .