Physics

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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

• Physics -

. An air puck of mass 0.250 kg is tied to a string
and allowed to revolve in a circle of radius
1.00m 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 1.00 kg is
tied to it (Fig. 4). The suspended mass remains
in equilibrium while the puck on the tabletop
revolves. What are (a) the tension in the string,
(b) the force exerted by the string on the puck,
and (c) the speed of the puck?

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