Question

The position of a body moving along $x-$axis as a function of time $t$ is given as $x=4-2t$ metre. The distance travelled by the body in first two seconds is :

• A. $Zero$
• B. $1m$
• C. $2m$
• D. $4m$

Answer 1

The correct option is A $Zero$

Given,

$x=(4-2t)m$

at $t=2sec$

The distance travelled by the body in first two sec :

$x=4-2\left(2\right)=4-4$

$x=0m$

The correct option is A.