A uniform thin plate has the shape of an isosceles triangle with equal sides 30 cm…
MATHEMATICS · Single correct · A Level · Mathematics · Moments · Moments
Problem
A uniform thin plate has the shape of an isosceles triangle with equal sides 30 cm long that meet at the top and a 20 cm base that lies horizontally. Which statement best describes the location of the plate’s center of mass?
(a) On the triangle’s line of symmetry, halfway between the base and the top vertex
(b) On the triangle’s line of symmetry, two-thirds of the distance from the base toward the top vertex
(c) On the triangle’s line of symmetry, one-third of the distance from the base toward the top vertex
(d) At the midpoint of the base