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Q. Consider a conical pendulum with a 20- kg mass on a 10 m wire making an angle of 3° with the vertical. The tension in the wire is 199 -N. Decide the constant speed of the mass to maintain this motion.

Q. A 4.00-kg mass is connected by a light cord to a 3.0 kg mass on a smooth surface. The pulley rotates about a frictionless axle and has a moment of inertia of 0.50 kg · m2 and a radius of 0.300 m. Assume that the cord does not slip on the pulley; find (1) the acceleration of the two masses and (2) the tensions T1 and T2.

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