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32. (II) A merry-go-round accelerates from rest to 0.68 rad/s in 34 s. Assuming the merry-go-round is a uniform disk of radius 7.0 m and mass 31,000 kg, calculate the net torque required to accelerate it.

32. (II) A merry-go-round accelerates from rest to 0.68 rad/s in 34 s. Assuming the merry-go-round is a uniform disk of radius 7.0 m and mass 31,000 kg, calculate the net torque required to accelerate it.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question 32
large pottery their circular of 2.0 cm and 29. (II) Determine the net torque on the 2.0-m-long uniform beam shown in Fig. 8-45. All forces are shown. Calculate about (a) point C, the CM, and (b) point P at one end. 56 N contact with 32 ping. Calcu- - wheel, and its required 65 N 45 ht on each a circle of niog lo ye ne exerts? he wheel prque of P ponu FIGURE 8-45 58° Problem 29. 52 N 8-5 and 8-6 Rotational Dynamics 30. (I) Determine the moment of inertia of a 10.8-kg sphere of radius 0.648 m when the axis of rotation is through its center. 31. (I) Estimate the moment of inertia of a bicycle wheel 67 cm in diameter. The rim and tire have a combined mass of 1.1 kg. The mass of the hub (at the center) can be ignored (why?). 32. (II) A merry-go-round accelerates from rest to 0.68 rad/s in 34 s. Assuming the merry-go-round is a uniform disk of radius 7.0 m and mass 31,000 kg, calculate the net torque e end required to accelerate it. 33. (II) An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 × 10¬2º kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.9 × 10-46 kg·m². From these data, estimate the effective distance between the atoms. orque and ends -43. hen 34. (II) A grinding wheel is a uniform cylinder with a radius of 8.50 cm and a mass of 0.380 kg. Calculate (a) its moment of inertia about its center, and (b) the applied torque needed to accelerate it from rest to 1750 rpm in 5.00 s. Take into the n0on measured to slow
Transcribed Image Text:large pottery their circular of 2.0 cm and 29. (II) Determine the net torque on the 2.0-m-long uniform beam shown in Fig. 8-45. All forces are shown. Calculate about (a) point C, the CM, and (b) point P at one end. 56 N contact with 32 ping. Calcu- - wheel, and its required 65 N 45 ht on each a circle of niog lo ye ne exerts? he wheel prque of P ponu FIGURE 8-45 58° Problem 29. 52 N 8-5 and 8-6 Rotational Dynamics 30. (I) Determine the moment of inertia of a 10.8-kg sphere of radius 0.648 m when the axis of rotation is through its center. 31. (I) Estimate the moment of inertia of a bicycle wheel 67 cm in diameter. The rim and tire have a combined mass of 1.1 kg. The mass of the hub (at the center) can be ignored (why?). 32. (II) A merry-go-round accelerates from rest to 0.68 rad/s in 34 s. Assuming the merry-go-round is a uniform disk of radius 7.0 m and mass 31,000 kg, calculate the net torque e end required to accelerate it. 33. (II) An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 × 10¬2º kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.9 × 10-46 kg·m². From these data, estimate the effective distance between the atoms. orque and ends -43. hen 34. (II) A grinding wheel is a uniform cylinder with a radius of 8.50 cm and a mass of 0.380 kg. Calculate (a) its moment of inertia about its center, and (b) the applied torque needed to accelerate it from rest to 1750 rpm in 5.00 s. Take into the n0on measured to slow
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