- #1
MarkChoo
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Homework Statement
A ball is suddenly kicked across a floor. It initial will have a linear velocity, but no initial angular velocity. The object will slide for a distance "d" until perfect rolling kicks in.
all are in terms of variables and not specific numbers
A.) derive an equation for linear acceleration of center of mass.
B.) deriave an equation for angular acceleration.
C.) Find final speed of the ball when pure rolling beings in terms of Vo
D.) determine the time and distance that the ball slid.
Homework Equations
I=2/5mR^2
Torque=(I)(alpha)
alpha = a/R
mgr?
wf = 2(alpha)(theta) + wi
The Attempt at a Solution
A.) T=I(alpha)
mgur = I(alpha)
mgur = I(a/R)
a= 5gu/2?
B.) alpha = u5g/2r?
very lost with the rest.