Question

In $v-t$ graph shown in fig. the displacement of the body in $5$ seconds will be, if it starts from origin.

• A. $90\text{m}$
• B. $70\text{m}$
• C. $50\text{m}$
• D. $60\text{m}$

Answer 1

The correct option is B $70\text{m}$

Given $v-t$ curve as

So, displacement of the body is given by the area under the $v-t$ curve
$\Rightarrow D=\frac{1}{2}\times (5+2)\times 20=70\text{m}$