s2057644 s2057644
  • 21-10-2021
  • Physics
contestada

From rest, a car accelerates to 4.2 m/s2 for 10 seconds before winning the race. How far did it run?

Write the final answer in complete sentence.

Respuesta :

discipulus
discipulus discipulus
  • 21-10-2021

Answer:

[tex] s = ut + \frac{1}{2} a {t}^{2} \\ u = 0 \\ a = 4.2 \: m {sec}^{ - 2} \\ t = 10sec \\ s = 0 + \frac{1}{2} (4.2) {10}^{2} \\ = 1.2 \times 100 \\\boxed{ s = 120 \: m}[/tex]

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