A) \[~5\text{ }m/{{s}^{2}}\]
B) \[~25\text{ }m/{{s}^{2}}\]
C) \[~0.25\text{ }rad/{{s}^{2}}\]
D) \[~25\text{ }rad/{{s}^{2}}\]
Correct Answer: D
Solution :
\[\tau =l\alpha \] \[F\times R=M{{R}^{2}}\alpha \] \[30\times 0.4=3\times {{(0.4)}^{2}}\alpha \] \[12=3\times 0.16\,\alpha \] \[400=16\alpha \] \[\alpha =25\,rad/{{s}^{2}}\]You need to login to perform this action.
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