trinity35 trinity35
  • 08-02-2017
  • Physics
contestada

Calculate the acceleration of a bus whose speed changes from 7 m/s to 16 m/s over a period of 5s

Respuesta :

dexteright02
dexteright02 dexteright02
  • 09-02-2017
To calculate the average acceleration, the first step is to calculate the speed and time variation.

Data:

A = (acceleration) = ?
ΔV = (Vf - Vi)
Vi (Initial velocity) = 7 m/s
Vf (Final velocity) = 16 m/s
Δt (period) = 5s

Solving:
[tex]A = \frac{\Delta\:V}{\Delta\;T} [/tex]
[tex]A = \frac{Vf - Vi}{\Delta\:T}[/tex]
[tex]A = \frac{16 - 7}{5}[/tex]
[tex]A = \frac{9}{5} [/tex]
[tex]\boxed{\boxed{A = 1.8\:m/s^2}}\end{array}}\qquad\quad\checkmark[/tex]

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