Let I1 be the moment of inertia about the centre of mass of a thick asymmetrical body. Let I2 be the moment of inertia about an axis parallel to I1. The distance between the two axes is ‘a’ & the mass of the body is ‘m’. Find the relation between I1 & I2.
A. I2 = I1 – ma2
B. I1 = I2 – ma2
C. I2 = I1
D. Parallel axis theorem can’t be used for a thick asymmetrical body
Answer:B
Let I1 be the moment of inertia about the centre of mass of a thick asymmetrical body. Let I2 be the moment of inertia about an axis parallel to I1. The distance between the two axes is ‘a’ & the mass of the body is ‘m’. Find the relation between I1 & I2.
A. I2 = I1 – ma2 B. I1 = I2 – ma2 C. I2 = I1 D. Parallel axis theorem can’t be used for a thick asymmetrical body