(part 1 of 2) An amusement park ride consists of a rotating
circular platform 10.2 m in diameter from
which 10 kg seats are suspended at the end
of 2.59 m massless chains. When the system
rotates, the chains make an angle of 36° with
the vertical
The acceleration of gravity is 9.8 m/s2.
What is the speed of each seat?
Answer in units of m/s.

(part 2 of 2)
If a child of mass 64 kg sits in a seat, what is
the tension in the chain (for the same angle)?
Answer in units of N.