A merry-go-round (model it as a flat disk) is rotating with initial angularvelocity 0.50 rad/s and angular acceleration 0.20 rad/s2. What is the merry-go-round's angular velocity after 7.0 seconds?Pick the correct answerC 1.9 rad/sc -0.9 rad/s8.4 rad/s35 rad/s

Given data: Initial angular velocity (ωi) = 0.50 rad/s Angular acceleration (α) = 0.20 rad/s2 Time…

A merry-go-round (model it as a flat disk) is rotating with initial angular velocity 0.50 rad/s and angular acceleration 0.20 rad/s². What is the merry- go-round's angular velocity after 7.0 seconds? Pick the correct answer O 1.9 rad/s o -0.9 rad/s O 8.4 rad/s 35 rad/s

A merry-go-round (model it as a flat disk) is rotating with initial angular velocity 0.50 rad/s and angular acceleration 0.20 rad/s². What is the merry- go-round's angular velocity after 7.0 seconds? Pick the correct answer O 1.9 rad/s o -0.9 rad/s O 8.4 rad/s 35 rad/s

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: The angular acceleration of a wheel is alpha-6t4-4t2 with alpha in radians per second-squared and t…

Q: A ceiling fan that was rotating with an angular velocity of 12.6 rad>s begins to slow downwhen it…

Q: A point on the rim of a 80 cm diameter tire wheel changes speed uniformly from 13.1 m/s to 19.6 m/s…

Q: A 3.45-kg centrifuge takes 122 s to spin up from rest to its final angular speed with constant a…

Q: A cylinder rotating at 11 rad/s is accelerated to 41 rad/s in 12 s. What is the angular acceleration…

A: Given data: Initial angular velocity (ω0) = 11 rad/s Final angular velocity (ω) = 41 rad/s Time (t)…

Q: diameter

Q: A medical saw is rotating at a constant rate of 15 revolutions per second. Calculate its angular…

A: Given value--- angular speed = 15 revolution per sec. We have to find--- angular speed in rad per…

Q: A medical saw is rotating at a constant rate of 15 revolutions per second. Convert its rotation to…

A: Given: Angular velocity (ω) = 15 rev/s Required: Angular velocity in rad/s

Q: The blades of a aircraft turbine spin with an angular velocity of 500 rad/s. The turbine begins to…

A: Answer (A) 326 rad/sec Solution We know that For rotation motion kinematics equation ω2 =…

Q: the disk is slowing down at a rate of 4 rad/s2, what is the direction of the angular acceleration…

Q: During a tennis serve the players angular rotational velocity around the shoulder went from 580…

A: Given data:initial angular velocity, final angular velocity, change in time, average angular…

Q: child is riding a merry-go-round, which has an angular speed of 2.15 rad/s and an angular…

A: Given Child is standing 3.465 m from the center of the merry-go-round is r=3.465 m Angular…

Q: A wheel starts from rest and has an angular acceleration of 4.0 rad/s². When it has made 11 rev, its…

Q: A remote-controlled car’s wheel accelerates at 22.7 rad/s2. If the wheel begins with an angular…

A: Given data: Angular acceleration (α) = 22.7 rad/s2 Initial angular velocity (ω0) = 10.3 rad/s…

Q: A potter's wheel (1 = 6.3 kg-m²) spins at 24 rad/sec. A 2.4 kg glob of clay is dropped vertically…

Q: 18 N 0.3 m 12 N 1.0 m 0.5 m 16 N A 367 kg solid disk (with uniform density) is shown. Its rotation…

Q: An owl's head rotates through an angle of 306° as it hunts. If the head slows down from 111.5 rpm to…

Q: Angular Quantities: What is the angular speed, in rad/s, of a flywheel turning at 813.0 rpm? 63.84…

A: Given data The number of rotational, N=813.0 rpm

Q: An automatic dryer spins wet clothes at an angular speed of 5.8 rad/s. Starting from rest, the dryer…

Q: Angular velocity of a rotating objects changes from 595%/s to.924%/s in 1.2s. What is the angular…

A: The initial angular velocity of the rotating object is ω1=595°/s The final angular velocity of the…

Q: A Ferris wheel slows down with a constant angular acceleration of magnitude 5.0 rad/s 2. If the…

A: Given : Angular acceleration (α) = -5 rad/s2 Negative because Ferris wheel is slowing down Number of…

Q: A softball pitcher's arm spins with an angular velocity of 30 rad/s at release of the ball. The…

A: The angular velocity of the ball ω=30 rad/s. The length of the pitcher's arm from the axis of…

Q: .0 cm diameter blades is turning at 45.0 rpm. Suppose the fan coasts to a stop 35.0 seconds after…

A: Given that: The diameter of the fan, d=65 cm The radius of the fan, r=652=32.5 cm=0.325 m The…

Q: 3.0 kg solid cylindrical wheel has a radius of 54 cm. Two forces are applied to it as shown in the…

Q: A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0…

Q: A wheel, initially rotating at 15.4 rad/s, undergoes an angular acceleration of 5.5 rad/s^2. What is…

Q: A wheel rotates with a constant angular acceleration of 6.0 rad/s². During a certain time interval,…

Q: he wheels of a car speed up from 2.7 rad/sec to 6.8 rad/sec in 1.1 seconds. What is the angular…

Q: flywheel is rotating at an angular velocity of 8 rad/s. It slows down at a rate of 2 rad/s?. How…

A: Given data::Initial angular velocity (ωi) = 8 rad/sFinal angular velocity (ωf) = 0 rad/sAngular…

Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

A merry-go-round (model it as a flat disk) is rotating with initial angular
velocity 0.50 rad/s and angular acceleration 0.20 rad/s2. What is the merry-
go-round's angular velocity after 7.0 seconds?
Pick the correct answer
C 1.9 rad/s
c -0.9 rad/s
8.4 rad/s
35 rad/s

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Angular speed, acceleration and displacement

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

A playground merry-go-round has a radius of 3.5 m and a rotational inertia of 720 kgˑm2. It is initially spinning at 0.60 rad/s when a 25 kg child crawls from the center to the rim. When the child reaches the rim the angular velocity of the merry-go-round in rad/s is:
A figure skater performs a twisting jump. She rotates around her longitudinal axis 2 times in 0.65 s. What was her average angular velocity in radians/second? A 720rad/s B 19.3rad/s C 4? rad/s D 9.67 rad/s E 1107 rad/s
A child is riding a merry-go-round which completes one revolution every 8.36 s. The child is standing 4.65 m from the center of the merry-go-round. What is the magnitude of the child's angular velocity? .603 rad/s .651 rad/s .751 rad/s .851 rad /s 2.134 rad/s
A child is riding a merry-go-round, which has an angular speed of 2.15 rad/s and an angular acceleration of 0.85 rad/s2 . The child is standing 3.465 m from the center of the merry-go-round. What is the magnitude of the acceleration of the child?
A cylinder spins along its symmetry axis at 20 rad/s and linearly slows down to a stop over 2 seconds. What is its angular acceleration and angular displacement?
A Wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.159 rad/s^2?. After making 2870 revolutions, its angular speed is 126 rad/s. (a) What is the initial angular velocity of the turbine? (b) How much time elapses while the turbine is speeding up?
A small fan has blades that have a radius of 0.0600 m. When the fan is turned on, the tips of the blades have a tangential acceleration of 11.4 m/s² as the fan comes up to speed. What is the angular acceleration a of the blades?
A child of mass 40 kg stands beside a circular platform of mass 115 kg and radius 1.6 m spinning at 3.4 rad/s. Treat the platform as a disk. The child steps on the rim. What is the new angular speed? in rad/s She then walks to the center and stay there. What is the angular velocity of the platform then? in rad/s What is the change in kinetic energy when she walks from the rim to the center of the platform? in J
A basketball player spins the ball on his finger with an angular acceleration of 81 rad/s2 a. What is the ball's final angular velocity, in radians per second, if it starts from rest and the acceleration lasts 2.2s.
The tires of a car are rotating with an angular velocity of 200 rads/s. The angular velocity is the increased to 500 rads/s in 3.00 s. What is the angular acceleration? O 100 rad/s2 O 750 rad/s? O 233 rad/s? 900 rad/s2
A compact disc in a turntable rotates through 6.0 rad in 4.4 s as it is accelerated uniformly from rest. What is the angular velocity at the end of the 4.4 s time interval? 2.40 rad/s 0.90 rad/s O 2.70 rad/s 3.60 rad/s 14.00 rad/s
A 0.30 m-radius automobile tire rotates how many rad after starting from rest and accelerating at a constant 2.0rad/s^2 over a 5.0-s interval.