An air puck of mass m 1 = 0.27 kg is tied to a string and allowed to revolve in

Question

An air puck of mass m1 = 0.27 kg is tied to a string and allowed to revolve in a circle of radius R = 1.2 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 m2 = 1.1 kg is tied to it (see the figure below). The suspended mass remains in equilibrium while the puck on the tabletop revolves.

An air puck of mass m1 = 0.27 kg is tied to a string and allowed to revolve in a circle of radius R = 1.2 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 m2 = 1.1 kg is tied to it (see the figure below). The suspended mass remains in equilibrium while the puck on the tabletop revolves.

Explanation / Answer

T = m2*g = 1.1*9.81 = 10.791 N

2) F = T = 10.791 N

3) F = m1*V^2/R

V = 3.43 m/s

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