Body is projected with speed of 20 metre per second at an angle of 30 degrees with the horizontal.Find the time after which velocity vector makes an angle of 60 degree with the horizontal ?
a) 5 sec
b) 10 sec
c) 4 sec
d) 6 sec
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Answer:
t=4sec
Explanation:
insta :-unique_boy_yaduvanshi
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