A) \[{{60}^{o}}\]
B) \[{{15}^{o}}\]
C) \[{{30}^{o}}\]
D) \[{{45}^{o}}\]
Correct Answer: A
Solution :
The speed of a projectile at its maximm. height \[v={{v}_{0}}\cos \theta \] \[\frac{{{v}_{0}}}{2}={{v}_{0}}\cos \theta \] \[\cos \theta =\frac{1}{2}\] \[\theta ={{60}^{o}}\]You need to login to perform this action.
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