A) \[2v\,\cos \,40{}^\circ \]
B) \[2v\,\sin 40{}^\circ \]
C) \[2v\,\sin \,20{}^\circ \]
D) \[2v\,\cos \,20{}^\circ \]
Correct Answer: C
Solution :
[c] Change in velocity =\[2v\sin (\theta /2)=2vsin20{}^\circ \]You need to login to perform this action.
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