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Deceleration vs Acceleration

  1. Jun 18, 2016 #1
    1. The problem statement, all variables and given/known data
    If you decelerate in one direction, are you accelerating in the opposite direction? Ex. You are standing in an elevator and are slowing down, going upwards- are you accelerating downwards since you're decelerating in the opposite direction, upwards?

    2. Relevant equations

    3. The attempt at a solution
    I think this is true.
  2. jcsd
  3. Jun 18, 2016 #2
    Yea, I agree,
    While driving if you go from 100mph to 50mph, then in the other direction you are going from -100mph to -50mph, if you take the definition of acceleration as an increase in speed, then yes you are technically accelerating in the other direction even while moving less than 0mph towards it
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