You sit at the middle of a large turntable at an amusement park as it is set spinning and then allowed to spin freely. When you crawl toward the edge of the turntable, does the rate of the rotation increase, decrease, or remain unchanged? What physics principle supports your answer?

Q: A 3.5-m-diameter merry-go-round with rotational inertia 120 kg · m² is spinning freely at 0.60 rev/s…

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Q: A carnival ride called the Hammerhead consists of a small gondola with people inside (total mass =…

A: There are different forces acting on the system. They are as shown in free body diagram: here, mg =…

Q: A pitcher throws a curveball that reaches the catcher in 0.66 s. The ball curves because it is…

A: Given: The angular velocity of the ball is 270 rev/min. The time interval is 0.66 s.

Q: A child stands on a spinning carousel. Another child runs on and jumps on the rim. (a) Choose the…

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Q: Newton's Second Law

A: 1).The lenses do not fall of, since according to an external observer both the person and the lenses…

Q: The man has a mass of 80 kg and sits 3 m from the center of the rotating platform. Due to the…

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Q: Hermann is riding on a merry-go-round which has a rotational frequency of 0.0842 Hz. The wooden…

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Q: A stone of mass 800.0 g is fastened to a string of length 75.0 cm which would break when the tension…

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Q: Four children stand at edge of a circular horizontal platform that is free to rotate about a…

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Q: The balls are connected by very lightweight rods pivoted at the point indicated by a dot. The rod…

A: Gravitation torque due to the two mass about pivot

Q: A ballet dancer has a moment of inertia of 5 when her arms reach her body and 20  when her arms are…

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Q: In an Atwood's machine, one block has a mass of 304.0 g, and the other mass of 454.0 g. The pulley,…

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Q: The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.68 m and 1.01 m,…

A: The angular speed of the main rotor of a single engine helicopter is,The angular speed of the tail…

Q: A 25-kg wheel has a radius of 40 cm and turns freely on a horizontal axis, The radius of the wheel…

A: This problem deals with rotational as well as translational dynamics. The situation given to us is…

Q: A flywheel rotates at 14 revolutions per second when it is brought uniformly to rest in 15 seconds.…

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Q: A person rides a Ferris wheel that turns with constant angular velocity. Her weight is 503.0 N. At…

A: Given: The weight of the person: W=503.0 N The difference in apparent weight at the top of the…

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A: Scenario - A cat jumps from a tree trunk with its limbs open. But just after jumping, while it is in…

Q: A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.919 rad/s.…

A: Step1: Calculate the Angular momentum of individual entities. 1.Platformmass=90.3 Kg, radius R=1.97,…

Q: Current Attempt in Progress At the local swimming hole, a favorite trick is to run horizontally off…

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Q: 2. Jane (55.0 kg) and Tarzan (85.0 kg) are standing on opposite edges (4.50 m apart) of a merry-go-…

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Q: A model airplane with a mass of 0.751 kg is tethered by a wire so that it flies in a circle 29.2 m…

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Q: You are to design a rotating cylindrical axle to lift 7.7-N buckets of cement from the ground to a…

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Q: An old-style elevator is connected to a counterweight by a cable that passes over a rotating disk…

A: Given:Diameter of rotating disk ,d = 3.7 m Height, H = 5 m velocity, v = 0.5 m/s   Solution: a)…

Q: A model airplane with a mass of 0.757 kg is tethered by a wire so that it flies in a circle 29.2 m…

A: Write the given values with suitable variables. m=0.757 kgr=29.2 mF=0.809 N Here, m  is the mass, r…

Q: A 25-kg wheel has a radius of 40 cm and turns freely on a horizontal axis, The radius of the wheel…

A: Given: Mass of wheel, M = 25 kg Radius of wheel, R = 40 cm = 0.4 m Radius of gyration, K = 30 cm =…

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Q: A uniform rod is swinging about the vertical equlibrium. The rod will have an angular acceleration…

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Q: What is the rotational inertia of top 8 meters of a sphere with a radius of 14 meters and a constant…

A: Moment of inertia  describes the capacity of a cross-section to resist its bending. For a rotating…

Q: belt runs a pulley of radius 10 cm at 90 revolutions per minute. (a) Find the angular speed ω of the…

A: radius (r) = 10 cm angular speed (ω) = 90 revmin

Q: *63. The differential gear of a car axle allows the wheel on the left side of a car to rotate at a…

A: Given data: Time lapse, t = 19.5 s Radius of each wheel, r = 0.350 m Distance between the tires on…

Q: A student sits on a pivoted stool holding a pair of weights. The stool is free to rotate about…

A: moment of inertia of child = 5 kg m2initial moment of inertia of weights = 2 * 5 * (1)2  = 10 kg…

Q: A bowling ball of mass 7.5 kg and radius 9.0 cm rolls without slipping 10 m down a lane at 4.3 m/s.…

A: According to Question --- Given that -- mass m = 7.5 kg. radius = 9 cm. distance= 10 m. speed = 4.3…

Q: A ball with an initial velocity of 10 m/s rolls off the edge of a horizontal table. Which of the…

A: Given data *The ball with an initial velocity is u = 10 m/s *The acceleration due to the gravity is…

Q: A cube with side length a = 80 cm and made out of concrete ( density of 1.8 · 10 kg/m³ ) should be…

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Q: The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.55 m and 1.01 m,…

A: diameter of main motor, D = 7.55  m , rotational speed = 446 rpm = 46.68 rad/s diameter of tail…

Q: A carousel is 4.0 m in diameter and has a moment of inertia about an axis through its center of mass…

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Q: A person rides a Ferris wheel that turns with constant angular velocity. Her weight is 503.0 N. At…

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Q: The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.52 m and 1.05 m,…

A: The diameters of the main rotor of a single engine helicopter d = 7.52 mThe Radius of the main rotor…

Q: A 2.5-kg disk with a rotational inertia given by MR²/2 has a radius of 0.2 m and is free to rotate…

A: Consider the free-body diagram of the disk and mass as follows.

Q: 4) lifted off the ground. The crank is turned, and the wheel uniformly begins spinning from rest to…

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Q: A disc is rolling on the ground and moving at 30 m/s as a result of its rolling. The disc stops in…

A: initial speed = 30 m/s t = 20 sec final speed = 0 m/smass = 50 kg using equation of motion v = u +…

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.