A) \[19.6\text{ }m/s\]
B) \[9.8\text{ }m/s\]
C) \[4.9\text{ }m/s\]
D) \[1\text{ }m/s\]
Correct Answer: B
Solution :
Time of flight \[T=\frac{2u\,\,\sin \theta }{g}\] Given, \[u={{v}_{0}},\,T=1s,\,\,\theta ={{30}^{o}},\,\,g=9.8m/{{s}^{2}}\] \[{{v}_{0}}=u=g=9.8m/s\]You need to login to perform this action.
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