A 24.5kg child is standing on the outer edge of the horizontal merry go round that has a moment of inertia 989 kg*m^2 about a vertical axis through its center and a radius of 2.40m.

A 24.5-kg child is standing on the outer edge of a horizontal merry-go-round that has a...

A 24.5-kg child is standing on the outer edge of a horizontal merry-go-round that has a moment of inertia of about a vertical axis through its center and a radius of 2.40 m. The entire system (including the child) is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a new position 1.10 m from the center of the merry-go-round... Please explain!!

A playground merry-go-round has radius 2.40m and moment of inertia 2100kg?m2 about a vertical axle through...

A playground merry-go-round has radius 2.40m and moment of inertia 2100kg?m2 about a vertical axle through its center, and it turns with negligible friction. A child applies an 22.5N force tangentially to the edge of the merry-go-round for 19.0s . If the merry-go-round is initially at rest, what is its angular speed after this 19.0s interval? How much work did the child do on the merry-go-round? What is the average power supplied by the child?

A playground merry-go-round of radius R = 2.6 m has a moment of inertia of I...

A playground merry-go-round of radius R = 2.6 m has a moment of inertia of I = 200 kg*m^2. and is rotating at a rate of ω = 11 rev/min around a frictionless vertical axis. Facing the axle, a 39 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 (in rev/min)

A playground merry-go-round of radius 1.9 m has a moment of inertia 139 kg.m2 and is...

A playground merry-go-round of radius 1.9 m has a moment of inertia 139 kg.m2 and is rotating at 9 rev/min about a frictionless vertical axle. Facing the axle, a 27 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?

A playground merry-go-round of radius R = 1.60 m has a moment of inertia I =...

A playground merry-go-round of radius R = 1.60 m has a moment of inertia I = 255 kg·m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. Facing the axle, a 25.0 kg child hops onto the merry-go-round and manages to sit down on its edge. What is the new angular speed of the merry-go-round?​

a 40 kg child is standing on the edge of a 100 kg merry go round(...

a 40 kg child is standing on the edge of a 100 kg merry go round( flat disk), with a radius of 4m. The merry go round is initially traveling at 20 rads/s. The child walks towards the center of the merry go round , until she is 0.5m from the center. What is the final angular speed other child at the new location?

A child with a mass of 50 kg is standing at the edge of a merry-go-round...

A child with a mass of 50 kg is standing at the edge of a merry-go-round which has a radius of 3.50 m and a mass of 700 kg. The merry-go-around is initially at rest. The child throws a 1.20 kg stone perpendicular to the merry-go-round's radius at a speed of 6.0 m/s. What is the resulting angular speed of the entire system? Friction is negligible and the merry-go-round is a uniform disk. The child is classified as a point...

A playground merry-go-round of radius ? = 2.0 m has a moment of inertia ? =...

A playground merry-go-round of radius ? = 2.0 m has a moment of inertia ? = 250 kg ⋅ m^2 is rotating at 15 rpm about a frictionless, vertical axle. Facing the axle, a 25-kg child hops onto the merry-goround and manages to sit down on the edge. (a) (10 pts) What is the total angular momentum of the ‘merry-go-round-child’ system before and after the child hops on the the merry-go-round? (b) (10 pts) What is the new angular speed,...

A merry-go-round with a moment of inertia equal to 1250kg?m2 and a radius of 2.5 m...

A merry-go-round with a moment of inertia equal to 1250kg?m2 and a radius of 2.5 m rotates with negligible friction at 1.70 rad/s. A child initially standing still next to the merry-go-round jumps onto the edge of the platform straight toward the axis of rotation, causing the platform to slow to 1.35 rad/s.What is her mass?

A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg?m2 is rotating freely...

A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg?m2 is rotating freely with an angular speed of 3.0 rad/s. Two people, each having a mass of 60 kg are standing right outside the edge of the merry-go-round. One person radially steps on the edge merry-go-round with negligible speed and the angular speed changes to ?1. A few seconds later, the second person radially steps on the merry-go-round with negligible speed but at distance of 4.0 m...