The initial speed of a runner is 5 m/s and final speed is 25 m/s. The length of track is 100 m. Find the acceleration achieved by the runner.
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Answer:
3 m/s²
Explanation:
assuming the acceleration of runner to be constant
We know that v² - u² = 2as
where v is the final velocity,u is the initial velocity,s is displacement of body and a is the acceleration (This formula is valid only if the acceleration is constant)
Substituting we get,
25² - 5² = 2aX100
⇒600 = 200a
⇒a = 3 m/s²
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