A) \[\frac{v}{2}\sqrt{1+2{{\cos }^{2}}\theta }\]
B) \[\frac{v}{2}\sqrt{1+2{{\cos }^{2}}\theta }\]
C) \[\frac{v}{2}\sqrt{1+3{{\cos }^{2}}\theta }\]
D) \[v\,\cos \,\theta \]
Correct Answer: C
Solution :
[c] Average velocity \[=\frac{Displacement}{Time}\] \[=\frac{\sqrt{{{H}^{2}}+{{R}^{2}}/4}}{T/2}\] Putting the required values, we get \[{{v}_{av}}=\frac{v}{2}\sqrt{1+3{{\cos }^{2}}\theta }\]You need to login to perform this action.
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