11No seoni < plays a role here.At the moment the projectile turns back its velocity is not zero!! We need to apply both conservation of energy and angular momentum...
find the min. velocity with which an object must be projected horizontally so that it doesen't returns back to the surface
acc to this link{ques c]}, ans shud be root [gr]
http://www.targetiit.com/iit-jee-forum/posts/interesting-kinematics-17278.html
but i believe it shud be root [2gr] only,
by conservation of energy{ as theres no role of angle of projection in it}
please confirm
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4 Answers
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1thanks for replying...
but then we'll have 2 equations, & 3 variables( initial V, final V, final _l_ distance)
where am i wrong... please tell..
62think of it in terms of graviational potential energy...
that will be much easier..
There you will not have to worry about horizontal/. vertical speed...
also you will not have to worry about changing gravitational field...