contestada

A car with an initial speed of 23.7 km/h accelerates at a uniform rate of 0.92 m/s for 3.6 s. Find the final speed of the car during this time.

Respuesta :

Answer: Final speed of car is 9.99 ≈10m/s or 2.78 km/h

Explanation:

Initial speed V1=23.7 km/h=6.58 m/s

accelerationa=0.92 m/s²

Time: t=3.6 s

V2=?

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use equat.

a=(V2-V1)/t

from here we can find V2

a*t=V2-V1

a*t+V1=V2

V2=a*t+V1

V2=0.92m/s²*3.6+6.58m/s

V2=3.312m/s+6.68m/s

V2=9.99m/s ≈10m/s

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