If the athlete finishes the race in 10.4sec, determine: (i) his initial acceleration; (ii) his maximum velocity.

Let t1 be time in which athlete achieves max. Velocity & let t2 be the remaining time

Let v be the maximum velocity achieved bt athlete & a be his acceleration

$So, t1+t2=10.4 \text {____}(i)$

Also for uniformly acc. Motion , we get

$4= (1/2)*a*(t1)^2 \text {____}(ii) \space\space\&\space\space v=a*(t1) …