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Homework Help: Tangential, Radial and total acceleration

  1. Apr 14, 2015 #1
    Hello, I have a question which I'm having hard time solving,
    1. The problem statement, all variables and given/known data
    A ride at the amusement park consists of a large, vertical drum in which people stand with their backs to the wall. The drum begins to rotate and eventually the people stick to the wall due to the acceleration – even when the floor is lowered. If the ride starts spinning from rest and it takes 5.0 seconds for a person against the wall to attain a speed of 5.0m/s, and if the drum has a radius of 4.0m find the following:

    1. What is the magnitude of the tangential acceleration experienced by a person at the wall?

    2. What is the magnitude and direction of the radial acceleration for a person against the wall when s/he reaches a speed of 3.0m/s?

    3. What is the magnitude and direction of the total acceleration of the person as s/he reaches 5.0m/s?
    2. Relevant equations

    3. The attempt at a solution
    I had several attempts but they were so useless that it would be irrelevant to even make mention of, I really have no other clue on how to solve this question. Any help would be appreciated.
    Last edited: Apr 14, 2015
  2. jcsd
  3. Apr 14, 2015 #2


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    Science Advisor
    Homework Helper
    Gold Member

    Your useless attempts may be relevant for assistance to see where you may be going wrong. Can you answer question 2 for starters?
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