A truck traveling at 20.0 m/s decelerates uniformly to 10.0 m/s over a distance of 100 m. determine:, a. rate of deceleration, a:

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A truck traveling at 20.0 m/s decelerates uniformly to 10.0 m/s over a distance of 100 m. determine:


a. rate of deceleration, a:

Penjelasan:

 {vt}^{2} =  {vo}^{2}  + 2as \\ {10}^{2} =  {20}^{2} + 2a(100) \\ - 200a = 400 - 100 \\ a =  \frac{300}{ - 200}  =  - 1.5 \: m/ {s}^{2}


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