Question

In $1.0\text{s}$, a particle goes from point $A$ to point $B$, moving in a circle of radius $1.0\text{m}$, shown in the figure. The magnitude of the average velocity is

• A. $1\text{m/s}$
• B. $0.5\text{m/s}$
• C. $2\text{m/s}$
• D. Zero

Answer 1

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

Average velocity is given as
$v_{Avg}=\frac{\text{Displacement}}{\text{Total Time}}$
Here, displacement of the particle will be $2\text{m}$, while going from $A$ to $B$ and time taken is $1\text{s}$
Thus, $v_{Avg}=\frac{2}{1}=2\text{m/s}$