A 5.0-m radius playgorund merry-go-round with a moment of inertia of 2000 Kg*m2is rotating freely with an angular speed of 2.0 rad/s. Two people, each having a mass of 60 Kg, are standing right outside the edge of the merry-go-round and step on it with negligible speed. what is the angular speed of the mery go round right after the two people have stepped on?

Q: A figure skater has a moment of inertia of 0.39 kg-m2. He is spinning at 251.6 rpm. He extends his…

A:

Q: Steve (whose mass is 31.8 kg) and Snot (whose mass is 22.5 kg) are standing at the center of a 110…

A:

Q: An airplane of mass 17116 kg flies level to the ground at an altitude of 12 km with a constant speed…

A: Write the given values with the suitable variables. m=17116 kgr=12 km=12000 mv=197 m/s Here, m, r,…

Q: A cyclotron produces a beam of charged particles useful in medicine. The cyclotron accelerates…

A:

Q: A merry-go-round has a radius of 2.0 m and a moment of inertia 300 kg · m2. A boy of mass 50 kg runs…

A: Conservation of angular momentum of the sun

Q: Figure E10.37 U = 12.0 m/s P 10.37 A 2.00-kg rock has a horizontal velocity of magni- tude 12.0 m/s…

A:

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

A:

Q: When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This…

A: The moment of inertia of a sphere having radius R.

Q: A person of mass 70 kg stands at the center of a rotating merry-go-round platform of radius 3.3 m…

A:

Q: Three children are riding on the edge of a merry‑go‑round that has a mass of 105 kg and a radius of…

A:

Q: A 3.7-m-diameter merry-go-round is rotating freely with an angular velocity of 0.90 rad/s . Its…

A: Given, diameter of the merry go round, d = 3.7 m angular velocity, ω = 0.90 rads mass of the people…

Q: A 30 kg child stands on the edge of a stationary merry-go-round of mass 100 kg and radius 2.0 m.…

A:

Q: A disk-shaped merry-go-round of radius 2.63 m and mass155 kg rotates freely with an angular speed of…

A: The moment if inertia of the merry go round is

Q: A disk (mass M, radius R) is spinning clockwise at an angular speed 10 rad/s when a second, smaller…

A:

Q: A DVD is rotating at 440 rpm. What is the angular momentum of the DVD if has a radius of 6.00 cm and…

A:

Q: A 45.0 kg child at a playground pushes on a 3.00 m diameter, 170. kg merry-go-round until it is…

A: Consider a child(mass m) running along the tangent of the merry-go-round(diameter d, mass M) with…

Q: Zorch, an archenemy of Superman, decides to slow Earth's rotation to once per 29 h exerting a force…

A: It is an easy question. Now first thing we have to do is to convert time period to angular velocity…

Q: A playground merry-go-round, with radius 2.0 m and moment of inertia 51 kg m2, rotates with an…

A: The rotational analog of linear momentum is called angular momentum and is given as:L=Iωwhere I is…

Q: What is the angular momentum (in kg*m*m/s) of a 350 g symmetrical rotating bar which is 4.50 m long…

A: Given, Mass of symmetrical bar (m) = 0.350kg  Length of bar (L) = 4.50m   Bar is rotating about…

Q: A7.56 kg toy car moves along an x axis with a velocity given by V=-2.88t i m/s, with t in seconds.…

A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…

Q: 4. A point object of mass 2m is attached to one end of a rigid rod of negligible mass and length L-4…

A: Initial momentum = mv                               = 30 m (Kg m/s)Using conservation of momentum30m…

Q: The figure shows a rigid structure consisting of a circular hoop of radius R and mass m, and a…

A:

Q: Two point-like beads of mass m are free to slide on a rod ( mL2) of length L= 14 m and mass m as 8…

A: Mass of the beads are m/8 Length of the rod is L = 14 m Angular speed of the system is ωs=2ω3…

Q: A disk of mass 3.0 kg and radius 70 cm is rotating at 2.4 rev/s. A small mass of 0.08 kg drops onto…

A: Law of Conservation of Angular Momentum According to the law of conservation of angular momentum, if…

Q: 4.5 cm diameter uniform solid sphere has mass 110 g and is spinning at 1000 rpm. What’s its angular…

A:

Q: A playground merry-go-round, with radius 1.8 and moment of inertia 115 kg m2, rotates with an…

A: The moment of inertia of the merry-go-round I=115 kgm2 The initial angular velocity of the…

Q: A 43 kg boy is seated at the edge of a 5.0 m diameter merry go round. The merry-go-round disc has a…

A: mass of boy, m = 43 kg  mass of disc, M = 90kg  radius, R = 2.5 m  Angular velocity, w = 18 rpm…

Q: Three children are riding on the edge of a merry-go-round that is a disk of mass 98 kg, radius 1.3…

A: New angular velocity  will be in rpm is 28.18rp

Q: At time t = 0, a 3.0 kg particle with velocity v = (5.0 m/s)i - (6.0 m/s)j is at x = 3.0 m, y = 8.0…

A: Mass of particle is Velocity is Position coordinates of particle are Force is  acting along…

Q: A bicycle is traveling north at 7.03 m/s. The mass of the wheel, 1.96 kg, is uniformly distributed…

A: Given : Velocity of bicycle, v = 7.03 m/s Mass of wheel, m = 1.96 kg radius of wheel, r = 21 cm

Q: A merry-go-round with a moment of inertia equal to 1300 kg⋅m2 and a radius of 2.5 m rotates with…

A: The momentum of inertia of the merry-go-round isI1=1300 kg·m2The radius of the merry-go-round…

Q: A 200 g puck revolves in a circle on a frictionless table at the end of a 50.0 cm long string. The…

A: Consider the mass of the puck be m, the angular momentum of the puck be L, the radius of the circle…

Q: An ice skater is spinning at a rate of 2 rad/sec.  She extends her arms and increases her moment of…

A: Initial and final moment of inertia= 1.22 & 2.5 Kgm2

Q: An 800g ball with radius 2cm is travelling inthe +x direction at 5m/s. It strikes a stationaryball,…

A: The objective of the question is to find the velocity of the heavier ball after the collision and…

Q: When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This…

A: Given:Radius of a star = RRadius of supernova shell = 3.9RNumber of revolutions of star per day =…

Q: A 1000 kg car moves with a speed of 50 m/s on a circular track of radius 100 m. What is the…

A: Given a 1000 kg car moves with a speed of 50 m/s on a circular track of radius 100 m. We have to…

Q: Two girls ?1 = 21.0 kg and ?2 = 29.0 kg are standing 1.00 m away from the center of a rotation…

A: Given:  mass of first girl, m1 = 21 kg  mass of second girl, m2 = 29 kg  mass of disc, M = 350 kg…

Q: A merry-go-round is a common piece of playground equipment. A 3.0-mm-diameter merry-go-round, which…

A: The objective of the question is to find the angular velocity of the merry-go-round after John jumps…

Q: A 3.7-mm-diameter merry-go-round is rotating freely with an angular velocity of 0.90 rad/s. Its…

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.