Re: Cause and Effect

[Leigh Palmer <palmer@SFU.CA>]

> A lot of students think that a ball that is thrown accelerates while it is
> in the air as a result of a "force of the throw" (have them consider a
> curve ball, for example).
>
> Might our use of the word "cause" be contributing to this misconception?
>
> Comments?

Do you believe that the force acing on the spinning, translating ball
would not be present if the ball were prevented by a constraint from
curving? I don't; I believe that a real force of constraint would be
necessary to equilibrate the Bernoulli force to prevent the curving.

Leigh