Question

24) There are four point masses m each on the
corners of a square of side length 1 about
one of its diagonals, the moment of inertia
of the system is
1
0
!
a) 2 ml2
c) 4 m2
b)
ml2
d) 6 ml​

Answer 1

Answer:

answer

Explanation:

Correct option is

C

4ml  

2

 

I  

xx  

′

 

​  

=m×(  

2

​  

 

1

​  

)  

2

+m×(  

2

​  

 

1

​  

)  

2

+m×(  

2l

​  

)  

2

 

=m×2×(  

2

2l

​  

 

​  

)  

2

+m×(  

2l

​  

)  

2

=4ml  

2

 

solution

Expand-imageCorrect option is

C

4ml  

2

 

I  

xx  

′

 

​  

=m×(  

2

​  

 

1

​  

)  

2

+m×(  

2

​  

 

1

​  

)  

2

+m×(  

2l

​  

)  

2

 

=m×2×(  

2

2l

​  

 

​  

)  

2

+m×(  

2l

​  

)  

2

=4ml  

2

 

solution

Expand-image