Question

a racing car initially at rest attain a speed of 198 km/h in 10sec . calculate the distance covered by the racing car from start and the acceleration

Answer 1

u=0, v=198km/h =198×5/18= 55m/s, t=10s.
a=v-u/t
=>a=(55-0)/10
=>a=55/10
=>[a=5.5m/s²]
Let distance=s
We know that,
2(a)(s)=v²-u²
=>2(5.5)(s)=(55)²-(0)²
=>11s=3025
=>s=3025/11
=>[s=275m] ANSWER..

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