# Tangential, Radial and total acceleration

1. Apr 14, 2015

### Robert0606

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. Apr 14, 2015

### PhanthomJay

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