Question

In $1.0s$, a particle goes from point $A$ to point $B$, moving in a semicircle of radius $1.0m$ The magnitude of the average velocity is

• A. $3.14m{s}^{-1}$
• B. $2.0m{s}^{-1}$
• C. $1.0m{s}^{-1}$
• D. $Zero$

Answer 1

Answer: (B)

$2.0m{s}^{-1}$

|Average velocity|$=\frac{|Displacement|}{Time}$
$=\frac{2r}{t}=2\times \frac{1}{1}=2m{s}^{-1}$