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38. From a building two balls A and B are thrown such that A is thrown upwards A and B downwards (both vertically). If vA and vB are their respective velocities on reaching the ground, then the relation b/w Va and Vb ..?

38. From a building two balls A and B are thrown such that A is thrown upwards A and B downwards (both vertically). If vA and vB are their respective velocities on reaching the ground, then the relation b/w Va and Vb ..?

Grade:11

4 Answers

upender surepally
126 Points
8 years ago

As the ball moves down from height ‘h’ to ground the P.E at height ‘h’ is converted to K.E. at theground (Applying Law of conservation of Energy).        

As the ball moves down from height ‘h’ to ground the P.E at height ‘h’ is converted to K.E. at the
ground (Applying Law of conservation of Energy)

therefore Va=Vb

                   . '' .Va = Vb

sunil e
41 Points
8 years ago

Va=Vb

Zeeshan Dayam
26 Points
4 years ago
Shouldn`t Va be more as it gained more height and thus more potential energy ?I think the question says that one was released from top while one was thrown to same the same height of B but upwards . i can`t really see any other possibility . PLEASE HELP
Harsh Shukla
34 Points
4 years ago
No question is correct,the thing is that both ball will move under same acceleration that is g,so both will have same velocity

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