Three children are riding on the edge of a merry-go-round that is 105 kg, has a 1.70-m radius, and is spinning at 16.0 rpm. The children have masses of 22.0, 28.0, and 33.0 kg. If the child who has a mass of 28.0 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm? Ignore friction and assume that the merry-go-round can be treated as a solid disk and the children as points. Number rpm

Three children are riding on the edge of a merry-go-round that is 105 kg, has a 1.70-m radius, and is spinning at 16.0 rpm. The children have masses of 22.0, 28.0, and 33.0 kg. If the child who has a mass of 28.0 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm? Ignore friction and assume that the merry-go-round can be treated as a solid disk and the children as points. Number rpm

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)...

See similar textbooks

Similar questions

A merry-go-round of radius R = 2.6 m has a moment of inertia I = 223 kg × m2, and is rotating at 10 rpm. A child whose mass is 44 kg jumps onto the edge of the merry-go-round with a speed of 4.5 m/s in a direction tangential to the rim of the MGR, and in the direction in which it is spinning. The new angular speed (in rpm) of the merry-go-round is approximately
A playground merry-go-round in the shape of a solid uniform disk of mass 105 kg and radius R = 2.20 m is rotating at 9.0 rev/min about a frictionless vertical axle. Facing the axle, a 24.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round? O 10.6 rev/min O 2.55 rev/min 0 5.33 rev/min 0 6.18 rev/min O 4.50 rev/min
Two big bugs, Buzz and Crunchy each of mass 0.65 kg, are siting on a spinning disk on a horizontal plane. Buzz is sitting halfway and Crunchy is sitting at the outer edge as shown. The radius of the disk is 3 m and it rotates once every 1.2 s. What is the magnitude of the net force on Buzz, in Newtons? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A turntable with a mass of 12 kg and a radius of 2 meters spins at a constant angular velocity of 140 rpm. A 500-gram scoop of uniformly-dense ice cream falls onto the turntable, so the scoop's center of mass is one meter away from the turntable's center. The scoop forms a hemisphere and has a radius of 4 cm. If there's no friction between the brick and ice cream scoop and they spin at the same angular speed, what is their final angular speed, in rev/min or in rad/s? Justify your answer with your rationale and equations used. Moments of Inertia: Idisk =MR for rotation about its center of mass parallel to the z-axis. %3D Ihemisphere = MR for rotation about its center of mass parallel to the z-axis. Edit View Ansert Format Tools Table COREI
Three children are riding on the edge of a merry-go-round that is 102 kg, has a 1.60 m radius, and is spinning at 17.3 rpm. The children have masses of 22.4, 30.5, and 40.8 kg. If the child who has a mass of 40.8 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm? rpm
Three children are riding on the edge of a merry-go-round that is a disk of mass 110 kg, radius 1.5 m, and is spinning at 18 rpm. The children have masses of 21.2 kg, 28.4 kg, and 33.8 kg. If the child who has a mass of 28.4 kg moves to the center of the merry-go-round, what is the new magnitude of angular velocity in rpm?
Three children are riding on the edge of a merry-go-round that is 162 kg, has a 1.60 m radius, and is spinning at 21.3 rpm. The children have masses of 17.4, 28.5, and 38.8 kg. If the child who has a mass of 38.8 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm?
Suppose a 40-kg child is on the roundabout. Treat the roundabout as a 50-kg solid cylinder with a radius of 2 m that rotates about its center. The child begins 2 m from the center of the roundabout and the roundabout has an angular velocity of 0.3 rev/s. The child then moves to 0.5 m from the center of the roundabout. What is the final angular velocity?
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.941 rad/s. You, with a mass of 70.9 kg, walk clockwise around the platform along its edge at the speed of 1.03 m/s with respect to the platform. Your 21.1 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 17.3 kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 90.9 kg and radius 1.83 m. Calculate the total angular momentum of the system. total angular momentum: 206.521 kg · m²/s
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.947 rad/s. You, with a mass of 75.1 kg, walk clockwise around the platform along its edge at the speed of 1.09 m/s with respect to the platform. Your 20.3 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 18.9 kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 92.7 kg and radius 1.95 m. Calculate the total angular momentum of the system. total angular momentum: kg · m?/s
Three children are riding on the edge of a merry-go-round that is 162 kg, has a 1.60 m radius, and is spinning at 15.3 rpm. The children have masses of 17.4, 29.5, and 40.8 kg. If the child who has a mass of 29.5 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm?
Three children are riding on the edge of a merry-go-round that is a disk of mass 102 kg, radius 1.3 m, and is spinning at 21 rpm. The children have masses of 20.4 kg, 26 kg, and 33.8 kg. If the child who has a mass of 26 kg moves to the center of the merry-go-round, what is the new magnitude of angular velocity in rpm?