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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Motion in a Straight Line
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A ball takes t seconds to fall from height $h_1$ and $2t$ seconds to falls from height $h_2$.Then $h_1/h_2$ is

\[(a)\;4 \quad (b)\;2 \quad (c)\;0.5 \quad(d)\;0.25 \]

Can you answer this question?
 
 

1 Answer

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$h=\large\frac{1}{2}$$gt^2$
$\large\frac{h_1}{h_2}=\frac{\Large\frac{1}{2}gt^2}{\Large\frac{1}{2}g(\large 2t)^2}$
$\large\frac{h_1}{h_2}=\frac{1}{4}$$=0.25$
Hence d is the correct answer.

 

answered Jul 3, 2013 by meena.p
edited Jul 28, 2014 by thagee.vedartham
 

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