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I found an expression for the ball's angular velocity (w) in terms of R, g, and y (y is the ball's height, as shown in the picture)I was wondering what the radius of the circle travelled by the ball is at height y. Not sure if that plays in a role in your problem.
and the expression is: w = sqrt(g/(R-y))
it gave me the correct answerAt this point, you have to take a step back and try to derive the correct answer before continuing, I believe. Physics is very hard and if you skip a small step in understanding, it will not be long before nothing makes any sense.
angular velocity is a speed and speed is a distance over a time interval, so meters per second.What are the units of v? And units of R are what? Then do division of the units, and what do you get?
And angular velocity (w): w = v/R
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