nana11122 nana11122
  • 10-12-2018
  • Physics
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An object traveling 50 m/s comes to a stop in 4 seconds. What is its acceleration

Respuesta :

AL2006
AL2006 AL2006
  • 10-12-2018

Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) - (speed at the beginning).

Change in speed = (zero) - (50 m/s) = -50 m/s

Time for the change = 4 sec

Acceleration = (-50 m/s) / (4 sec)

Acceleration = -12.5 m/s²

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