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Answer:
Lian's acceleration is 1 m/.
Explanation:
In the present case, the initial velocity of the runner is given as 10 m/s. After 5 s, the runner runs with velocity of 15 m/s. If there is no change in direction, then the acceleration can be found easily as the change in velocity per unit time.
So,
Thus, the acceleration will be 1 m/.
So the change in velocity will lead to an acceleration of 1 m/.
Hope this will help!