A person of mass 78 kg stands at the center of a rotating merry-go-round platform of radius 2.9 m and moment of inertia 840 kg⋅m2 . The platform rotates without friction with angular velocity 0.95 rad/s . The person walks radially to the edge of the platform. a) Calculate the angular velocity when the person reaches the edge. b) Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk.

Q: A man stands on a platform that is rotating (without friction) with an angular speed of 1.2 rev/s;…

A: a) As there is no external force, thus the angular momentum is conserved,

Q: A man stands on a platform that is rotating (without friction) with an angular speed of 0.412 rev/s;…

A:

Q: Consider a father pushing a child on a playground merry-go-round. The system has a moment of inertia…

A: Given Moment of inertia = 84.4 kgm2  radius r =1.5 m Torque =375 Nm

Q: A playground carousel is free to rotate about its center on frictionless bearings, and air…

A:

Q: A man stands on a platform that is rotating (without friction) with an angular speed of 1.42 rev/s;…

A:

Q: Conceptual Example 14 provides useful background for this problem. A playground carousel is free to…

A:

Q: Conceptual Example 14 provides useful background for this problem. A playground carousel is free to…

A: Given that: Ig=114 kg-m2r1=1.53 mωi=0.607 rad/sr2=0.759 mωf=0.703 rad/s

Q: An ice skater is spinning at an angular speed of 3.17 rad/s with a moment of inertia of 27.0 kg•m^2…

A:

Q: Suppose the earth moves around the sun in uniform circular motion with time period one year. If the…

A:

Q: 4. A person of mass 75 kg stands at the center of a rotating merry-go-round platform of radius 3.0 m…

A:

Q: Problem A constant net torque 11 N.m is applied on a uniform solid cylinder with radius 2 m and mass…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: Consider a father pushing a child on a playground merry-go-round. The system has a moment of inertia…

A: Given:- The system has a moment of inertia is I= 84.4 kg · m2. The father exerts a force on the…

Q: A playground carousel is free to rotate about its center on frictionless bearings, and air…

A:

Q: A child is pushing a playground merry-go-round. The angle through which the merry-go-round has…

A: Here, it is given that,  The angle through which the merry-go-round has turned varies with time…

Q: An airliner lands with speed of 51.0 m/s. Each wheel of the plane has radius of 1.25 m and momentum…

A:

Q: Problem 9.6 Consider an object initially at rest that begins a uniform rotational motion with…

A: Given in question - angular acceleration (α) = 0.95 rad/s2                                  t1 =…

Q: A baseball pitcher throws the ball in a motion where there is rotation of the forearm about the…

A: Given that----- linear velocity = 18.3 m/sec d = 0.48 m moment of inertia = .55 kg/m2   Question…

Q: A playground carousel is free to rotate about its center on frictionless bearings, and air…

A:

Q: A small putty of mass 5.6 grams is traveling at 313 m/s when it strikes a cylinder (edge on) that is…

A:

Q: A man stands on a platform that is rotating (without friction) with an angular speed of 1.47 rev/s;…

A:

Q: Figure shows a Lazy Susan food tray being rotated by a person in quest of sustenance. Suppose the…

A: a. write the expression for net torque.

Q: A playground merry-go-round has a radius of 4.30 mm and a moment of inertia of 243 kg⋅m2kg⋅m2 and…

A: Radius of merry go round (R) = 4.3 m Moment of inertia (I) = 243 kg.m2A) Applied force (F) = 25 N…

Q: Calculate the angular velocity when the person reaches the edge. A person of mass 72 kg stands at…

A: Given: The mass of the person is 72 kg. The radius of the platform is 3 m. The moment of ineritia of…

Q: |A disk with moment of inertia I1 rotates about a frictionless, vertical axle with angular speed Wi.…

A: By conservation of angular momentam Li=Lf Iiωi=Ifωf

Q: A man stands on a frictionless platform that is rotating at an angular speed of 1.2 rev/s; his arms…

A: A man stands on a frictionless platform that is rotating at an angular speed of 1.2 rev/s; his arms…

Q: A man stands on a platform that is rotating (without friction) with an angular speed of 0.618 rev/s;…

A:

Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…

A:

Q: A rope is wrapped around a circular pulley such that its acceleration is given by a = 10t (in m/s2,…

A:

Q: Consider a father pushing a child on a playground merry-go-round. The system has a moment of inertia…

A:

Q: Calculate the total rotational motion energy of the system shown in the figure (watting neglected…

A: Given : Masses are m1 = 4 kg, m2 = 2 kg & m3 =  3 kg  distance of 4 kg mass from axis of…

Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…

A: radius = r = 4.96 m rotational inertia of platform = I = 268 kg-m2 mass of student = 53.1 kg

Q: A person of mass 73 kg stands at the center of a rotating merry-go-round platform of radius 2.5 mm…

A:

Q: A man stands on a platform that is rotating (without friction) with an angular speed of 1.42 rev/s;…

A:

Q: A person having a mass of 75 kgkg sits on the edge of a horizontal rotating platform, 2.1 mm from…

A: Given data The mass of the person is m = 75 kg The radius of the platform is r = 2.1 mm = 2.1 x 10-3…

Q: Rebecca with mass 60 kg is standing on the rim of a large disk that is rotating at 0.50 rev/s about…

A:

Q: The photo shows a high-wire walker striding confidently along a steel cable stretched nearly half a…

A: The given values are, Mbody=88 kgLbody=1.8 mMpole=20 kgLpole=9.1 m

Q: Consider a person who is sitting on a frictionless rotating stool. The person initially has his arms…

A: accordind to conservation of angular momentum I₁w₁=I₂w₂

Q: 4. A person of mass 75 kg stands at the center of a rotating merry-go-round platform of radius 3.0 m…

A: 4) mass of person (m) = 75 kg radius of platform = 3 m Moment of inertia of platform = 820…

Q: A person working out, with arms stretched out to either side, holds 5 kg in each hand. While sitting…

A:

Q: The thin uniform rod in the figure has length 3.0 m and can pivot about a horizontal, frictionless…

A: Using conservation of energy : mgh= 12Iω2 Where h = L2sinθ moment of inertia of rod about end =…

Q: During the launch from a board, a diver’s angular speed about her center of mass changes from zero…

A:

Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…

A:

Q: A 58 kg child is riding on the outer rim of a merry-go-round. The merry-go-round has a radius of 2.2…

A:

Q: a man stands on a rotating frictionless platform with an angular speed of 2.4rad/s.His arms are…

A: angular momentum=Inertia×angular velocity= I×w w1=2.4 rad/sw2=?I1=8 kgm2I2=4 kgm2