a-10-kg-rectangular-wooden-plank-with-dimensions-180-cm-by-40-cm-is-used-as-a-se

Question

A 10 kg rectangular wooden plank with dimensions 180 cm by 40 cm is used as a seesaw. What is the moment of inertia of the plank when it rotates about its centre of mass?

Accepted Answer

2.70 kg•$$m^{2}$$

Answer

21.6 kg•$$m^{2}$$

Answer

12.6 kg•$$m^{2}$$

Answer

9.00 kg•$$m^{2}$$