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A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of...
12) A 24.5-kg child (momentum of inertia is mR2 )is standing on the outer edge of...
12) A 24.5-kg child (momentum of inertia is mR2 )is standing on the outer edge of a horizontal merry-go-round (treat the merry-go-around as solid cylinder, which has moment of inertia of 1/2mR2) about a vertical axis through its center and a radius of 2.50 m. The entire system (including the child) is initially rotating at 0.200 rev/s a) Find the angular velocity if the child moves to a new position 1.25 m from the center of the merry-go-round. b) If...
26. A 35 kg child is sitting at the edge of a 750 kg merry-go-round (assume...
26. A 35 kg child is sitting at the edge of a 750 kg merry-go-round (assume it is a solid uniform cylinder or disk) with radius 2.0 m which is rotating once every 30 seconds. a. Calculate the angular velocity of the merry-go-round. 0.21 rad's b. Calculate the speed of the child. 0.42 m/s C. Calculate the angular momentum of the merry-go-round and child together. 343.5 d. If the child moves into the center of the merry-go-round, what will the...
A 25-kg child running at 1.6 m/s jumps onto the outer edge of a merry-go-round of...
A 25-kg child running at 1.6 m/s jumps onto the outer edge of a merry-go-round of 200-kg mass and 1.8 m radius. If the merry-go-round starts from rest, what is the final angular velocity in rad/s of the child and merry-go-round? Use conservation of angular momentum and treat the merry-go-round as a solid disk.
Three children are riding on the edge of a merry-go-round that is 102 kg, has a...
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 15.3 rpm. The children have masses of 19.9, 28.5, and 38.8 kg. If the child who has a mass of 28.5 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm? rpm Additional Materials Reading Submit Answer Practice Another Version + -/1 points OSColPhys2016 10.5.P.041. My Notes Ask Your Teacher (a)...
A girl (named Mary? Get it?) stands at the outer edge of a merry-go-round at distance...
A girl (named Mary? Get it?) stands at the outer edge of a merry-go-round at distance 2.3m from the center. The merry-go-round is rotating at 22 rpm. The girl has a mass of 30kg, and the merry-go-round has a moment of inertia of 1300kgm^2 (a) What is the moment of inertia of the girl as she rotates around the center of the merry-go-round? (b) What is the angular velocity of the merry-go-round? rad/s (c) What is the total moment of...
A merry-go-round with moment of inertia 400 kg-m^2 and radius 2.0m is rotating with angular speed...
A merry-go-round with moment of inertia 400 kg-m^2 and radius 2.0m is rotating with angular speed 0.50 rad/s in the clockwise direction about a fixed axis. A child of mass 40 kg runs tangentially to the merry-go-round with speed 3.0m/s and grabs onto the outside edge of the merry-go-round. a. What is the final angular velocity of the system (merry-go-round plus child)/ What is the final tangential speed of the child? b. What is the change in kinetic energy? c....
A playground merry-go-round of radius R = 1.80 m has a moment of inertia I =...
A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 245 kg · m2 and is rotating at 12.0 rev/min about a frictionless vertical axle. Facing the axle, a 23.0-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? rev/min
A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and...
A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an angular velocity of 0.350 rev/s. What is its angular velocity (in rev/s) after a 25.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest. ______ rev/s
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius...
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...
A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with...
A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.330 rev/s. What is its angular velocity, in rev/s, after a 29.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest.
12) A 24.5-kg child (momentum of inertia is mR2 )is standing on the outer edge of a horizontal merry-go-round (treat the merry-go-around as solid cylinder, which has moment of inertia of 1/2mR2) about a vertical axis through its center and a radius of 2.50 m. The entire system (including the child) is initially rotating at 0.200 rev/s a) Find the angular velocity if the child moves to a new position 1.25 m from the center of the merry-go-round. b) If...
26. A 35 kg child is sitting at the edge of a 750 kg merry-go-round (assume it is a solid uniform cylinder or disk) with radius 2.0 m which is rotating once every 30 seconds. a. Calculate the angular velocity of the merry-go-round. 0.21 rad's b. Calculate the speed of the child. 0.42 m/s C. Calculate the angular momentum of the merry-go-round and child together. 343.5 d. If the child moves into the center of the merry-go-round, what will the...
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 15.3 rpm. The children have masses of 19.9, 28.5, and 38.8 kg. If the child who has a mass of 28.5 kg moves to the center of the merry-go-round, what is the new angular velocity in rpm? rpm Additional Materials Reading Submit Answer Practice Another Version + -/1 points OSColPhys2016 10.5.P.041. My Notes Ask Your Teacher (a)...
A girl (named Mary? Get it?) stands at the outer edge of a merry-go-round at distance 2.3m from the center. The merry-go-round is rotating at 22 rpm. The girl has a mass of 30kg, and the merry-go-round has a moment of inertia of 1300kgm^2 (a) What is the moment of inertia of the girl as she rotates around the center of the merry-go-round? (b) What is the angular velocity of the merry-go-round? rad/s (c) What is the total moment of...
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...
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