Question

In 1.0 s, a particle goes from point A to B, moving in a semicircle 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. Zero

Answer 1

Answer: (B)

2.0 m/s

Answer 2

|${\overset{\rightarrow}{V}}_{avg}$| = $\frac{|Total\mspace{6mu} disp|}{Total\mspace{6mu} time}$ = $\frac{2r}{1}$ = 2.0 $\frac{m}{s}$