Question

Example 4. A thin uniform bar of length 120 cm is made to oscillate about an axis through its end. Find the period of oscillation and other points about which it can oscillate with same period.


Answers:

Io= ml²/12
= mk² , or

k²= l²/12
=(1.2)²/12
=0.12m² , And

I = 1/2*1.2
= 0.6m , and

L= k²/l+l
= 0.12/0.6+0.6 , And

t= 2π√0.8/9.8 ,
= 1.79 sec
ans. ​

Answer 1

Answer: Correct Answer - 1.79s; other end and 20cm on either side of CG

Explanation: Mark me brainlest please