A) 2 kg-\[{{\text{m}}^{2}}\]
B) 1 kg-\[{{\text{m}}^{2}}\]
C) 4 kg-\[{{\text{m}}^{2}}\]
D) 8 kg-\[{{\text{m}}^{2}}\]
Correct Answer: A
Solution :
Given data m = 4 kg, r = 0.4 m, \[\alpha \] = 8 rad/\[{{\sec }^{2}}\] Torque \[Z=I.\,\alpha \] \[mgr=I.\,\alpha \] or, \[4\times 10\times 0.4=I\times 8\] \[I=\frac{16}{8}=2kg-{{m}^{2}}\] \[I=2\,kg\text{-}{{m}^{2}}.\]You need to login to perform this action.
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