An ice skater rotates about its own axis with angular velocity omega. He holds two weights in his outstretched arms. Then he suddenly releases the weights. What happens to the rotation about his axis when the weights are released? A. He rotates at the same angular velocity. B. He rotates at an increased angular velocity. C. He rotates at a lower angular velocity. D. More information is needed.

An ice skater rotates about its own axis with angular velocity omega. He holds two weights in his outstretched arms. Then he suddenly releases the weights. What happens to the rotation about his axis when the weights are released? A. He rotates at the same angular velocity. B. He rotates at an increased angular velocity. C. He rotates at a lower angular velocity. D. More information is needed.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: T 1. A uniform disk, such as a record turntable, initially turns at 5.00 rev/s around a frictionless…

Q: A car traveling at a constant speed as it rounds a curve is not experiencing angular acceleration.…

A: Introduction:Angular acceelration is defined as the rate of change ofangular velocity.α = dωdtalso…

Q: A millstone is spinning with an angular speed of 16.0 rad/s. Within 8.0 seconds the angular speed is…

A: Millstone is spinning with constant angular acceleration .Average angular velocity is the average of…

Q: 5. The Seattle Great Wheel has a radius of 57 meters. a) If the wheel has a period of rotation of 45…

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

Q: A 80kg person sits 2m from the center of the rotating platform and the platform has a tangential…

A: Given data *The mass of the person is m = 80 kg *The distance of the center of the rotating platform…

Q: A competitive diver leaves the diving board and falls toward the water with her body straight and…

A: Pulling arms and legs into a tight tuck position. To find: change in angular speed=?

Q: A diver curls up on diving to do flips, then straightens as she enters the water. Which of these is…

A: The product of the body's angular velocity and its moment of inertia is the angular momentum of the…

Q: . A child hangs onto the edge of a merry-go-round that is spinning at 30 rpm. a) In your own words,…

A: (a) Motion is relative. So when comparing to frames of reference, if with respect one reference…

Q: 2.) A spinning, flat disk of radius 2.0 m has a tangential velocity at its edge of 4.5 m/s. a.…

Q: An ice skater is spinning on the ice with her arms fully extended. When she pulls in her arms, she…

A: As in this case, no external torque is present. So, Angular momentum will be conserved. Angular…

Q: Radian/second (rad/s) is the unit of O a, angular acceleration O b. angular velocity O c.angular…

A: SI unit of Angular acceleration = rad/s^2 SI unit of Angular Velocity = rad/s

Q: A driver launches off the diving board with a set of angular momentum. The diver extends into a…

A: A driver launches off the diving board with a set of angular momentum. The diver extends into a…

Q: A 24-inch diameter tire rotates 8.2 revolutions per second a. determine the angular speed of the…

Q: increases

A: When the resultant external torque acting on system is zero, the total angular momentum of the…

Q: Consider an object on a rotating disk a distance ? from its center, held in place on the disk by…

A: EXPLANATION a) true , since we know( v=ωr) where ,v= tangential speed which depened…

Q: A 0.700-kg ball is on the end of a rope that is 2.00 m in length. The ball and rope are attached to…

Q: 2. We can use a simple model which uses our understanding of uniform circular motion to estimate the…

A: Given: Mass of planet = M Radius of planet = R Mass of stone = m

Q: The 2.0-m-long, 15 kg beam shown is hinged at its left end. It is “falling” (rotating clockwise,…

A: Given, The length of the beam is 2.0m long The mass of the beam is 15kg

Q: The wheels of a bicycle roll without slipping on a horizontal road as the bicycle moves due east at…

A: The direction of angular velocity will be due North (option B).Explanation:Step 1: Concept used- The…

Q: A typical helicopter with four blades rotates at 290 rpm and has a kinetic energy of 5.85 x 105 J.…

A: Given that-Kinetic energy, K=5.85×105 JAngular speed, ω=290 rpmwhere, ω=290×2π60 rad/sec=30.35…

Q: c) Choose the equation of motion to calculate the total angular displacement traveled by the dust in…

A: We are given the the radius of dust. We are given the angular velocity. We are given the time till…

Q: A child walks across merry-go-round A with a constant speed u relative to A . The merry-go-round…

A: To determine: Direction of the acceleration.

Concept explainers

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.

Question

100%

An ice skater rotates about its own axis with angular velocity omega. He holds two weights in his outstretched
arms. Then he suddenly releases the weights. What happens to the rotation about his axis when the weights are
released?
A. He rotates at the same angular velocity.
B. He rotates at an increased angular velocity.
C. He rotates at a lower angular velocity.
D. More information is needed.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Introduction:

VIEW

Explanation:

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.7 m diameter and a mass of 230 kg. Its maximum angular velocity is 1500 rpm. 1- A motor spins up the flywheel with a constant torque of 53 Nm. How long does it take the flywheel to reach top speed? 2-How much energy is stored in the flywheel? 3-The flywheel is disconnected from the motor and connected to a machine to which it will deliver energy. Half the energy stored in the flywheel is delivered in 2.4 s . What is the average power delivered to the machine? 4-How much torque does the flywheel exert on the machine?
5. A hoop of radius 0.20 m and a mass of 0.35 kg is released from rest and allowed to roll down an inclined plane. What is the translational speed (v) of the hoop after dropping a vertical distance of 3.80 m? m/s 6 sk skp skpl kp136
A ladybug sits at the outer edge of a merry-go-round, and a gentlemanbug sits halfway between her and the axis of rotation. The merry-go-round makes a complete revolution once each second. The gentlemanbug's angular velocity is: Select one: a. The same as the ladybug's. b. Half the ladybug's. c. Twice the ladybug's. d. Impossible to determine from the information given. b part: The gentlemanbug's linear tangential velocity is: Select one: a. The same as the ladybug's. b. Half the ladybug's. c. Twice the ladybug's. d. Impossible to determine from the information given.
q9
An ice skater is spinning about a vertical axis with arms fully extended. If the arms are pulled in closer to the body, in which of the following ways are the angular momentum and kinetic energy of the skater affected? a.) angular momentum increases and kinetic energy increasing b.) Angular momentum remains constant and kinetic energy increases c.) angular momentum increases and kinetic energy remains constant. d.) angular momentum remains constant and kinetic energy remains constant.
5. Sean spins a ball in a horizontal circle on a weigh-less string. Justin has a similar ball but wants to spin his slower. What could Justin do to make it harder to start spinning the mass from rest? a. make the string longer b. use a lighter ball c. spin the ball closer to the ground d. make the string shorter 6. A fan initially rotates clockwise at 9.0 rad/s, but has a counterclockwise angular acceleration of 3.0 rad/s? and reaches a counterclockwise angular speed of 27 rad/s. How much time did this change in the angular velocity take? a. -9 s b. -12 s C. 9 s d. 12 s
1. A piece of dust finds itself on a CD. The spin rate of the CD is 525 rpm, and the piece of dust is 3.9 cm from the center. The CD rotates for 4 minutes. (Ignore the forces and acceleration needed to set and keep the CD in motion; only consider the piece of dust) a) Which quantities are constant during the spinning of the dust particle along with the CD? Both Angular Velocity ar b) SET UP Using the notation 40 for angular displacement, 0 for angular position at time t, 0 for the initial angular position, w for angular velocity at time t, wo for the initial angular velocity, and a for the angular acceleration, and r for the distance of the particle from the center, re unknown. determine what quantities are known and what ● • Enter some known values below. t = r = a = W = X X X X min cm rad/s2 rpm d by the dust in 4
2.) A spinning, flat disk of radius 2.0 m has a tangential velocity at its edge of 4.5 m/s. a. Consider a point 0.33 meters from the axis of rotation. Find the tangential velocity there? b. Find the angular velocity at the edge of the disk. c. Find the angular velocity at that point 0.33 m from the axis of rotation. d. Find its centripetal acceleration at the edge. e. Using "b." above find in radians how far the point on the edge travels in 15 s.
The wheels of a bicycle roll without slipping on a horizontal road. The bicycle is moving due east at a constant velocity. What is the direction of the angular velocity of the wheels? (Hint: Take east as the right direction. Do the bicycle wheels turn clockwise or anti-clockwise?) а. Down b. West С. East d. North e. South
THANK YOU
6. Spinning Ice Skater: A 50 kg ice skater is spinning around at 2 revolutions per second with her arms tucked in. You may consider her to be a cylinder 1.5 meters high with a radius of 15 cm. She sticks her arms straight out to slow herself down. Each of her arms is 2 kg and 75 cm long. How fast does she rotate with her arms extended?
An ice skater is spinning on the ice with her arms fully extended. When she pulls in her arms, she spins at a faster rate because a. Her moment of inertia decreases. b. Her moment of inertia increases. c. Her moment of inertia stays the same. d. Her mass stays the same. e. Her weight stays the same.