logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Motion in a Straight Line
0 votes

Two diamonds begin a free fall from rest from same height $1.0 \; sec$ apart How long after will the two diamonds be 10 m apart ? $(g=10 m/s)$

\[(a)\;2\;sec \quad (b)\;1.5 \;sec \quad (c)\;1\;sec \quad(d)\;2.5 \;sec \]

Can you answer this question?
 
 

1 Answer

0 votes
We have
$S_1(t)-S_2(t-1)=10$
$\large\frac{1}{2}$$ \times gt^2-\large\frac{1}{2}$$ g(t-1)^2=10$
$t=1.5 \;sec$
Hence b is the correct answer. 

 

answered Jul 2, 2013 by meena.p
edited Jan 26, 2014 by meena.p
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...