Draw a ball tied to the end of a string
and being swung around in a circular path. Label the following: Vt,
r, Fc, m.
Why do we talk about “rotational speed”
instead of “rotational velocity”?
How can an object with a constant rotational
speed be accelerating?
A car on a Ferris wheel has an angular
displacement of 0.34 rad. If the car moves through an arc length
of 12 m, how *tall* is the radius of the Ferris wheel?
If a wheel increases its average angular
speed by 27 rad/s in 1.9 s, what is its angular acceleration?
What is/are the force(s) that allow(s)
a car to make a turn? Describe the parts of the car that are acting
and in what direction in each case.
Why does mud fly off a rotating wheel?
(Your answer must contain the word “force” and must explicitly reference
to several other variables.)
What is the distance between a 0.4 kg billiard
ball and a 0.3 kg billiard ball if the magnitude of the gravitational force
is 8.92 x 10^-11 N?
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