Question

From the adjacent figure a displacement-time graph of a body moving in a straight line. Find the distance covered and displacement of the body at the end of $12$ seconds.

• A. $40$ m, zero
• B. $20$m, zero
• C. $10$m, $10$ m
• D. $20$m, $20$ m

Answer 1

Answer: (A)

$40$ m, zero

Distance covered in first 2 seconds = 10 $m$,

Body is in rest between 2 to 6 seconds so distance = 0 $m$,

Distance covered in first 6 to 8 seconds = 10 $m$,

Distance covered in first 8 to 10 seconds = 10 $m$,

Distance covered in first 10 to 12 seconds = 10 $m$,

So final distance = 10+10+10+10= 40 $m$.

Body is start at 0 seconds and comes to same position at 12th seconds so displacement is zero.

$\Rightarrow$ Distance = 40 $m$, Displacement = 0