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 cars start off to race with velocities 4m/s and 2 m/s and travel in straight line with uniform acceleration $1\; m/s^2$ and $2 m/s^2$ respectively. If they reach the final point at same time, then the length of path is

\[(a)\; 30 m \quad (b)\;32 m \quad (c)\;20 m \quad (d)24 m \]

Can you answer this question?
 
 

1 Answer

0 votes
$s=4t+\large\frac{1}{2}$$(1)t ^2$
$\quad=2t+\large\frac{1}{2}$$(2)t^2$
$=>t=0\;or\;t=4s$
Therefore $ s=4 (4)+\large\frac{1}{2}$$(1) 4^2$
$=24m$
Hence d is the correct answer
answered Jun 25, 2013 by meena.p
edited May 23, 2014 by lmohan717
 

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
...