Question 2. An air puck of mass m is tied to a string and allowed to revolve in a circle of radius r on a flat, frictionless table. The other end of the string passes through a small hole in the center of the circle, and a load of mass M is attached to the string. The suspended load remains in equilibrium while the puck revolves on the table. m M
Question 2. An air puck of mass m is tied to a string and allowed to revolve in a circle of radius r on a flat, frictionless table. The other end of the string passes through a small hole in the center of the circle, and a load of mass M is attached to the string. The suspended load remains in equilibrium while the puck revolves on the table. m M
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Transcribed Image Text:Question 2.
An air puck of mass m is tied to a string and allowed to revolve in a circle of radius r on a flat, frictionless
table. The other end of the string passes through a small hole in the center of the circle, and a load of mass
M is attached to the string. The suspended load remains in equilibrium while the puck revolves on the table.
m
M
(a) What is the speed of the puck?
(b) Now this same system is set up with a new table that has friction. Qualitatively, what will happen to
the radius of the puck's motion as time progresses?
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