kerensamson809 kerensamson809

08-06-2019
Physics

contestada

a train moves moves from rest to a speed of 25 m/s in 30.0 sec . what is its acceleration

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fuller14 fuller14

08-06-2019

a = Delta v/Delta t
Delta v = 25 - 0 = 25
Delta t = 30
25/30 = 5/6 = 1.66 repeating

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09-06-2019

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

Change in speed = 25 m/s

Time for the change = 30 sec

Acceleration = (25 m/s) / (30 sec)

Acceleration = (25/30) (m/s /s)

Acceleration = 0.833... m/s²

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