An amusement park ride consists of a large vertical cylinder that spins about its axis fast
enough that any person inside is held up
against the wall when the floor drops away
(see figure). The coefficient of static friction
between the person and the wall is ki and the
radius of the cylinder is R
What is the minimum tangential velocity

powerful computers now, not then

this could be newton#'s law of cooling. the cooling curve is exponential

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.