YourAverageFangirl
YourAverageFangirl YourAverageFangirl
  • 09-12-2020
  • Physics
contestada

A girl walks 0.3 m/s. She moves 0.8 m/s 5 s later.

What is the girl’s acceleration?

0.8 m/s

0.5 m/s, 2

0.3 m/s

0.1 m/s2

Respuesta :

rafaleo84
rafaleo84 rafaleo84
  • 10-12-2020

Answer:

a = 0.1 [m/s²]

Explanation:

To solve this problem we must use the following equation of kinematics.

[tex]v_{f}=v_{o}+a*t[/tex]

Vf = final velocity = 0.8 [m/s]

Vo = initial velocity = 0.3 [m/s]

a = acceleration [m/s²]

t =  time = 5 [s]

[tex]0.8=0.3+a*t\\0.5 = 5*a\\a = 0.1 [m/s^{2}][/tex]

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