Draw a spaceship (or space station) that
features “artificial gravity” produced from rotational motion.
Describe three differences between angular
speed and tangential speed.
If you swing a set of keys through the
air at the end of a chain, and it takes 0.22 s to make a complete revolution,
what is the angular speed of the keys?
What is the tangential speed of the same
set of keys if the chain is 0.31 m long?
Why does the tangential speed change as
you move to the outer edge of a rotating wheel?
How long does it take the second hand of
a clock to move through 4.00 rad?
What is the angular acceleration of a phonograph
that has an initial speed of 33 rev/min if it slows to 11 rev/min in 2.0
If centrifugal force doesn’t exist, what
are we mistaking it as? Give an example that explains this.
If the gravitational force acting between
two students sitting in their desks is 3.20 x 10^-8 N, and the two students
are 50.0 kg and 60.0 kg, respectively, how far apart are they sitting?
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