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Calculating the angular acceleration.

Calculating Acceleration?

  • Ok, so the directions say "Calculate the acceleration of the train between 80 seconds and 110 seconds. Show all work for credit!" and I know that in order to find the acceleration of something you have to do FINAL VELOCITY-INITIAL VELOCITY/TIME so the final velocity of the train is 190 km/hr , the initial velocity is 100km/hr and the time is 30 seconds.I just dont get the whole converting thing with the seconds and the hours................

  • Answer:

    first, we will convert the given velocities into m/s. => final velocity = 190 * 1000/60*60 or 190 * 5/18 = 52.7 m/s => initial velocity = 100 * 5/18 = 27.7 m/s time taken = 30s => acceleration = 52.7 - 27.7/30 = 25/30 = 0.833 m/s2

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first, we will convert the given velocities into m/s. => final velocity = 190 * 1000/60*60 or 190 * 5/18 = 52.7 m/s => initial velocity = 100 * 5/18 = 27.7 m/s time taken = 30s => acceleration = 52.7 - 27.7/30 = 25/30 = 0.833 m/s2

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