A 1.0 m ruler and a 2.0 m ruler are made of the same material (and therefore the 2.0 m ruler is twice as massive). What is the ratio of the rotational inertia of the 1.0 m ruler to the 2.0 m ruler, if they are both pivoted to swing about their ends?
A. 0.063.
B. 0.13.
C. 0.25.
D. 0.50.
Answer:B
A 1.0 m ruler and a 2.0 m ruler are made of the same material (and therefore the 2.0 m ruler is twice as massive). What is the ratio of the rotational inertia of the 1.0 m ruler to the 2.0 m ruler, if they are both pivoted to swing about their ends?
A. 0.063. B. 0.13. C. 0.25. D. 0.50.