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Question: If a particle goes from point A to point B in 1 s moving in a semicircle (see Fig.). The magnitude o...

If a particle goes from point A to point B in 1 s moving in a semicircle (see Fig.). The magnitude of the average velocity is

A

3.14 ms-1

B

2ms-1

C

1 ms-1

D

Zero.

Answer

2ms-1

Explanation

Solution

Here average velocity

= displacement⥂ABtime\frac{displacement ⥂ AB}{time}

= 21=2ms−1\frac{2}{1} = 2ms^{- 1}