Consider that two cars are accelerating along the same road and if the distance between them was observed to be increasing,what deduction can you make as regards the acceleration? a)it implies that the trailing car has the smaller acceleration b)it implies that the two cars are accelerating at the same rate c)it implies nothing about the acceleration d)it implies that the leading car has the greater acceleration.


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Question Number 30614 by NECx last updated on 23/Feb/18

$C o n s i d e r t h a t t w o c a r s a r e$ $a c c e l e r a t i n g a l o n g t h e s a m e r o a d$ $a n d i f t h e d i s t a n c e b e t w e e n t h e m$ $w a s o b s e r v e d t o b e i n c r e a s i n g, w h a t$ $d e d u c t i o n c a n y o u m a k e a s r e g a r d s$ $t h e a c c e l e r a t i o n ?$ $a) i t i m p l i e s t h a t t h e t r a i l i n g c a r$ $h a s t h e s m a l l e r a c c e l e r a t i o n$ $b) i t i m p l i e s t h a t t h e t w o c a r s a r e$ $a c c e l e r a t i n g a t t h e s a m e r a t e$ $c) i t i m p l i e s n o t h i n g a b o u t t h e$ $a c c e l e r a t i o n$ $d) i t i m p l i e s t h a t t h e l e a d i n g c a r$ $h a s t h e g r e a t e r a c c e l e r a t i o n .$
	Answered by chintan005@ last updated on 23/Feb/18

	$ans is d$
	Commented by NECx last updated on 23/Feb/18

	$p l e a s e d o w e l l t o e x p l a i n w h y y o u$ $c h o s e D a s a n a n s w e r . I^{'} m m o r e$ $c o n f u s e d b e c a u s e t h e t e x t b o o k s a y s$ $C a s a n s w e r a n d {t h e r e}^{'} s n o$ $e x p l a n a t i o n . T h a n k s .$
	Commented by MJS last updated on 24/Feb/18

	$it says nothing about the acceleration$ $because we {don}^{'} t know the initial$ $speeds of the cars . the leading car$ $could still be faster even if its acc .$ $is lower$
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