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6. Check your understanding; Use the equation for acceleration to determine the acceleration for
the following two motions

6 Check your understanding Use the equation for acceleration to determine the acceleration for the following two motions class=

Respuesta :

Answer:

#A

  • Initial=u=0m/s
  • Final=8m/s=v
  • Time=4s=t

Acceleration=a

[tex]\\ \tt\hookrightarrow a=\dfrac{v-u}{t}=\dfrac{8}{4}=2m/s^2[/tex]

#B

  • Initial=u=8m/s
  • Final=v=0m/s
  • Time=4s=t

[tex]\\ \tt\hookrightarrow a=\dfrac{0-8}{4}=\dfrac{-8}{4}=-2m/s^2[/tex]

Answer(s):

  • Practice A: 2 m/s
  • Practice B: -2 m/s

Solution for Practice-A:

We know that:

  • Formula: Acceleration = v₁ - v₂/t
  • v₁ = Final velocity
  • v₂ = Starting velocity
  • t = Time

Solution:

  • v₁ - v₂/t
  • => 8 - 0/4
  • => 8/4
  • => 2/1
  • => 2 m/s

Hence, the acceleration is 2 m/s for practice A.

Solution for Practice B:

We know that:

  • Formula: Acceleration = v₁ - v₂/t
  • v₁ = Final velocity
  • v₂ = Starting velocity
  • t = Time

Solution:

  • v₁ - v₂/t
  • => 0 - 8/4
  • => -8/4
  • => -2/1
  • => -2 m/s

Hence, the acceleration is -2 m/s for practice B.

Hoped this helped!

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