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Velocity(Speed with Direction)

Determine her...

Question

Determine her average velocity in $m / s$ for the first half of the swim.

A

2

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B

2.5

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C

6

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D

9

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Solution

The correct option is B $2.5$
During first half of swim :
Displacement covered $S_{1} = 50 m$
Time taken $t_{1} = 20 s$
Average velocity $v_{1} = \frac{D i s p l a c e m e n t}{T i m e} = \frac{S_{1}}{t_{1}} = \frac{50}{20} = 2.5 m / s$

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