First slide

Average Speed

Question

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

Easy

A

3.14 m/s
B

2.14 m/s
C

4.15 m/s
D

3.15 m/s

Solution

distance covered= $πR$
average speed= $\frac{π \times 1}{1}$

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