Physics And Measurement Question 227

Question: The moment of inertia of a body rotating about a given axis is 6.0kgm2 in the SI system. What is the value of the moment of inertia in a system of units in which the unit of length is 5 cm and the unit of mass is 10 g?

Options:

A) 2.4×103

B) 2.4×105

C) 6.0×103

D) 6.0×105

Show Answer

Answer:

Correct Answer: B

Solution:

[b] In new system, 1g=10g,1cm=5cm.

I=6×100×g(20cm)2=6×100×400g×cm2

$ =2.4\times 10^{5}gcm{{}^{2}} $



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