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deff fn [24]
2 years ago
6

A car is merging onto the expressway with an acceleration of 1.77 m/s^2. When it begins down the ramp the car is traveling at a

speed of 11.1 m/s. How long will it take for the car to reach a speed of 24.4 m/s
Physics
2 answers:
TiliK225 [7]2 years ago
7 0

Answer:

time taken = 7.514 seconds

\sf{acceleration} =  \dfrac{\Delta v}{\Delta t} = \dfrac{final \ speed - initial \ speed}{time \ taken}

Here given:

  • acceleration: 1.77 m/s²
  • final speed: 24.4 m/s
  • initial speed:  11.1 m/s

using the given formula:

\hookrightarrow \sf{1.77}  = \dfrac{24.4 - 11.1}{time \ taken}

\hookrightarrow \sf{time \ taken}  = \dfrac{24.4 - 11.1}{1.77}

\hookrightarrow \sf{time \ taken}  = 7.514 \ seconds

Jlenok [28]2 years ago
7 0

Formula :

\frac{final  \: speed - initial  \: speed}{time  \: taken}

Given :

  • acceleration: 1.77 m/s²

  • final speed: 24.4 m/s

  • initial speed: 11.1 m/s

Solution :

1.77 =  \frac{24.4 - 11.1}{time \: taken}

time \: taken  =  \frac{24.4 - 11.1}{1.77}

taken \: time  = 7.514 \: seconds

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