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a car takes off from rest and covers a distance of 80m on a straight road in 10s.calculate the magnitude of its acceleration

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Here's the solution :

Let's find the final velocity :

  • [tex] \dfrac{displacement}{time} [/tex]

  • [tex] \dfrac{80}{10} [/tex]

  • [tex]8 \: \: ms {}^{ - 1} [/tex]

Initial velocity (u) = 0 (cuz it started from rest)

Final velocity (v) = 8 m/s

Time taken (t) = 10 sec

now, we know that :

  • [tex]acceleration = \dfrac{v - u}{t} [/tex]

  • [tex] \dfrac{8 - 0}{10} [/tex]

  • [tex] \dfrac{8}{10} [/tex]

  • [tex]0.8 \: \: m {s}^{ - 2} [/tex]

Acceleration = 0.8 m/s²

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