The time taken for the sprinter to reach the final velocity is 5.68 s.
What is velocity?
This can be defined as the ratio of displacement of a body to time. The S.I unit of velocity is m/s.
The time taken for the sprinter to reach its final velocity can be calculated using the formula below.
Formula
- S = (v+u)t/2.................... Equation 1
Where:
- S = Total distance covered by the sprinter
- v = Final velocity
- u = Initial velocity
- t = time taken to reach its final velocity
make t the subject of the equation
- t = 2S/(v+u)................. Equation 2
From the question,
Given:
- S = 100 m
- u = 7 ft/s
- v = 28.2 ft/s
Substitute these values into equation 2
- t = 2(100)/(28.2+7)
- t = 200/35.2
- t = 5.68 s
Hence, The time taken for the sprinter to reach the final velocity is 5.68s
Learn more about velocity here: https://brainly.com/question/6504879
