Question

In the figure (i) half of the meter scale is made of wood while the other half, of steel. The wooden part is pivoted at O. A force F is applied at the end of steel part. In figure (ii) the steel part is pivoted at O and the same force is applied at the wooden end

A. More acceleration will be produced in (i)
B. more acceleration will be produced in (ii)
C. same acceleration will be produced in both conditions
D. information is incomplete

Answer 1

Correct Answer - B
As `tau=I alpha`
`alpha prop 1/I` (`tau` is constant)
MI of figure (ii) is smaller hence acceleration is greater.