MCQ
Two particles $A$ and $B$ start from rest and move for equal time on a straight line. Particle $A$ has an acceleration of $2\,m / s ^2$ for the first half of the total time and $4\,m / s ^2$ for the second half. The particle $B$ has acceleration $4\,m / s ^2$ for the first half and $2\,m / s ^2$ for the second half. Which particle has covered larger distance?
  • A
    $A$
  • $B$
  • C
    Both have covered the same distance
  • D
    Data insufficient

Answer

Correct option: B.
$B$
b
(b)

Area under $\nu-t$ graph gives displacement. We can see that area for $B$ is greater than area of $A$. Hence, $B$ has covered larger distance.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free