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October 24, 2014

Homework Help: Physics

Posted by Greg on Tuesday, November 13, 2012 at 5:19pm.

An air puck of mass 0.23 kg is tied to a string and allowed to revolve in a circle of radius 1.0 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of 0.9 kg is tied to it. The suspended mass remains in equilibrium while the puck on the tabletop revolves.

(a) What is the tension in the string?
N

(b) What is the force causing the centripetal acceleration on the puck?
N

(c) What is the speed of the puck?
m/s

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