A passenger in a train moving at an acceleration a, drops a stone from the window. A person, standing on the ground, by the sides of the rails, observes the ball falling (1) Vertically with an acceleration (√(g^2 + a^2 )) (2) Horizontally with an acceleration (√(g^2 + a^2 )) (3) Along a parabola with an acceleration (√(g^2 + a^2 )) (4) Along a parabola with an acceleration g


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Question Number 15832 by Tinkutara last updated on 14/Jun/17

$A passenger in a train moving at an$ $acceleration a, drops a stone from the$ $window . A person, standing on the$ $ground, by the sides of the rails,$ $observes the ball falling$ $(1) Vertically with an acceleration$ $\sqrt{g^{2} + a^{2}}$ $(2) Horizontally with an acceleration$ $\sqrt{g^{2} + a^{2}}$ $(3) Along a parabola with an acceleration$ $\sqrt{g^{2} + a^{2}}$ $(4) Along a parabola with an acceleration$ $g$
	Answered by mrW1 last updated on 14/Jun/17

	$answer (4)$ $once the stone is droped, the acceleration$ $of the train has no influence on the$ $stone .$
	Commented by Tinkutara last updated on 14/Jun/17

	$Thanks Sir!$
	Commented by ajfour last updated on 14/Jun/17

	$i t s i n i t i a l v e l o c i t y i s e q u a l t o$ $t h a t o f t h e t r a i n w h e n i t w a s$ $r e l e a s e d f r o m {p a s s e n g e r}^{'} s h a n d$ $s o i t w i l l m o v e b o t h f o r w a r d a n d$ $d o w n w a r d s a l o n g a p a r a b o l a . .$
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