hijabandshoulders
hijabandshoulders hijabandshoulders
  • 06-09-2020
  • Mathematics
contestada

a car rolls backward from -2 to -10 m/s in 4 seconds. What is the acceleration. PLEASE HELP WILL GIVE BRAINLIEST

Respuesta :

Hrishii
Hrishii Hrishii
  • 06-09-2020

Answer:

[tex] - 4 \: m {s}^{ - 2} [/tex]

Step-by-step explanation:

Initial velocity u = - 2 m/s

Final Velocity v = - 10 m/s

Time t = 4

[tex]Acceleration = \frac{Change \: in \: velocity}{time} \\ = \frac{v - u}{t} \\ = \frac{ - 10 - ( - 2)}{t} \\ = \frac{ - 10 + 2}{t} \\ = \frac{ - 8}{2} \\ = - 4 \: m {s}^{ - 2} \\ [/tex]

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