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General question question in Physics

an athlete runs 100m in 10.0 seconds. assume that he accelerates uniformly from rest for the 20m and then he runs at constant velocity for the remainder of the race. find the final velocity and the time taken accelerating

March 14 2013, 9:00 pm

ALL ANSWERS
**Ramunenyiwa Thabelo**
(Not registered at a university, South Africa (ZA))

∆x=(vf+vi)2∆t

from the equation above substitute the values end make vf the subject of the fimulae...∆x=100 ∆t=10.0

via=20....answer vf=0

October 3 2015, 10:17 am

**0**

∆x=(vf+vi)2∆t

from the equation above substitute the values end make vf the subject of the fimulae...∆x=100 ∆t=10.0

via=20....answer vf=0

October 3 2015, 10:17 am

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