A) 7.07
B) 10
C) 14.14
D) 100
Correct Answer: B
Solution :
From the equation, \[\theta ={{\omega }_{0}}t+\frac{1}{2}\alpha {{t}^{2}}\] Given,\[\alpha =0.2\text{ }rad/{{s}^{2}},\text{ }{{\omega }_{0}}=0,\text{ }\theta =10\text{ }rad\] \[\Rightarrow \] \[10=\frac{1}{2}(0.2){{t}^{2}}\] \[\Rightarrow \] \[{{t}^{2}}=100\] \[\Rightarrow \] \[t=10\,s\]You need to login to perform this action.
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