A body is projected with a velocity u at an angletheta with the horizontal . At t= 2s ,the body makes an angle 30^@ with the horizontal . 1 s later, it attainsits maximum height . Then

A body is projected with a velocity u at an angletheta with the horizo

1.	A body is projected with a velocity u at an angletheta with the horizontal . At t= 2s ,the body makes an angle 30^@ with the horizontal . 1 s later, it attainsits maximum height . Then
Answer» `u=20 SQRT(3) m//s` `THETA =60^@` `theta= 45^@` `u=(20)/sqrt(3) m//s` Answer :A::B