[JIPMER 1999]
A) \[\frac{1}{2}\sec \]
B) 2 sec
C) 4 sec
D) 1 sec
Correct Answer: B
Solution :
For one dimensional motion along a plane \[S=ut+\frac{1}{2}a{{t}^{2}}\]\[\Rightarrow 9.8=O+\frac{1}{2}\]\[g\sin {{30}^{o}}{{t}^{2}}\]Þ\[t=2\sec \]
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