Question

In figure (1), a metre stick, half of which is wood and the other half steel is pivoted at the wooden end at O and a force is applied to the steel end at a. In figure (2), the stick is pivoted at the steel end at O' and the same force is applied at the wooden end at a'. The angular acceleration

• A. In (1) is greater than in (2)
• B. In (2) is greater than in (1)
• C. Equal in both (1) and (2)
• D. None of the above

Answer 1

Answer: (B)

In (2) is greater than in (1)

Answer 2

Torque is same in both cases but M.I. is more in 'a'. Now apply t = Ia