Question

The average velocity of the object over the time interval ($2s$ to $4s$) will be (here $x$ is the position of the object)

• A. $4\text{m/s}$
• B. $2\text{m/s}$
• C. $8\text{m/s}$
• D. $6\text{m/s}$

Answer 1

The correct option is B $2\text{m/s}$

Average velocity = $\frac{\text{Displacement}}{\text{Time}}$
Displacement of the object from ($t=2s\text{to}t=4s)=10\text{m}-6\text{m}=4\text{m}$
$\therefore$ Average velocity =$\frac{4\text{m}}{2s}=2\text{m/s}$