An air puck of mass 0.030 kg is tied to a string
and allowed to revolve in a circle of radius 1.2
m on a frictionless horizontal surface. The
other end of the string passes through a hole
in the center of the surface, and a mass of
2.7 kg is tied to it, as shown. The suspended
mass remains in equilibrium while the puck
revolves on the surface. What is the magnitude of the force that
maintains circular motion acting on the puck?
The acceleration due to gravity is 9.81 m/s^2 answer in Newtons.
Part 2: What is the linear speed of the puck?
Answer in units of m/s.
