From the displacement-time graph of a cyclist, given, find :

(i) the average velocity in the first $ 4 \mathrm{s} $,

(ii) the displacement from the initial position at the end of $ 10 \mathrm{s} $

(iii) the time after which he reaches the starting point.

"

(i) Displacement in first 4 seconds = 10 m

     Average velocity in first 4 seconds = $\frac{displacement}{time} = \frac{10m}{4s}$

= 2.5 m/s

(ii) Displacement from the initial position at the end of 10 seconds 

     = -10 m

(iii) Time after which he reaches the starting point = 13 seconds

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Updated on: 10-Oct-2022

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