In 1.0 s, a particle goes from point A to B, moving in a semi-circle of radius 1.0 m (as shown in the figure). The magnitude of the average velocity of the particle is
A) 3.14 m/s
B) 2.0 m/s
C) 1.0 m/s
D) 0
Correct Answer:
B
Solution :
From figure AB = 2r \[AB=2\times 1=2\,m\] Average velocity \[=\frac{displacement}{time}\] \[=\frac{2}{1}=2\,m/s\]