Question

89. The mass of a solid body is 200 gm and oscillates
about a horizontal axis at a distance of 20 cms
from the centre of gravity. If length equivalent to
simple pendulum is 40 cms, its M.1. thorugh the
centre of gravity will be :
(1) 8 x 10* gm-cm
(2) 8 x 104 kg-om"
(3) 8 x 104 gm-m
14) 8 x 104 kg-cm​

Answer 1

Answer:

2π

g

l

=2π

mgl

′

I

∴ l=

ml

′

I

or I=(m)(l)(l

′

)

=(200)(20)(35)

=1.4×10

5

g-cm

2