Answered: "How long does it take for a disk…

"How long does it take for a disk revolving at 60 RPM to come to stop, if it is subjected to an angular acceleration of "-n 12" rad/sec2? O 1s 25 None of these

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 6WUE: A grindstone increases in angular speed uniformly from 4.00 rad/s to 12.0 rad/s in 4.00 s. (a)...

See similar textbooks

Related questions

Q: A bicycle wheel spins with an angular momentum of L = 5.0 kg-m2 If the wheel has mass m = 2.4 kg and…

A: Using formula: Angular Momentum=Moment of Inertia x Angular velocity…

Q: Suppose a child walks from the outer edge of a rotating merry-go-round inside, does the angular…

A: The angular velocity of the merry-go-round will increase Reason initially when the child is at outer…

Q: A 4 kg ball with a 0.45-meter radius is initially at rest begins to roll and accelerate at a uniform…

Q: A rock tied to the end of string swings at a constant angular rate. You measure the rock to pass…

A: Given data: Angular displacement (θ) = 10π radians Time (t) = 5.30 seconds Length of the string (L)…

Q: The figure below shows a graph of angular velocity versus time for a man bicycling around a circular…

Q: If the radius of an object moving in a circle is doubled, what happens to the objects angular…

A: Expression for angular momentum - L=mvrWhere, L =Angular momentum v = Velocity r = Radius

Q: In a high school swim competition, a student takes 1.4s to complete 4.0 somersaults. Determine the…

Q: 16.0-kg block is attached to a cord that is wrapped around the rim of a flywheel of diameter 0.400m…

Q: 13. When a woman on a frictionless rotating turntable extends her arms out horizontally, her angular…

A: The moment of inertia is directly varies with the square of the distance or length . When the arms…

Q: Assume for now we are talking about when he has his arms pulled in towards his torso and not…

A: Given data: Mass is, m= 67.5 kg Height is, h= 1.70 m Radius is, r= 13.5 cm = 0.135 m Spinning rate…

Q: thin ring that weighs about 13.5N that has a radius of about 0.5m rotating at the rate of 7 rev/s.…

Q: A spinning wheel is slowed down by a brake, giving it a constant angular acceleration of -5.60…

A: Formula to calculate the angular displacement of a wheel with a uniform angular speed is given by,…

Q: A 5.4-kg ball is tied to the end of a string. The ball is then swung at a constant angular velocity…

A: Data provided: Mass of the ball (m) = 5.4 kg Constant angular velocity (ω) = 14 rad/s Radius (r) =…

Q: Calculate the Torque that a child must apply to swing a rock of mass 0.5 kg in a radius 1.16 meters.…

A: mass of rock (m) = 0.5 kg radius (R) = 1.16 m Initial velocity (u) = 0 msfinal velocity (v) = 5…

Q: You have two identical-looking metal spheres of the same size and the same mass. One is solid; the…

Q: A flywheel revolving at 15 rps slows down to 5 rps. Meanwhile it completes 50 revolutions. Calculate…

A: In the given question , We have to determine the angular acceleration.

Q: 17. A discus thrower accelerates a w discus from rest to a speed of 25.0 m/s by whirling it through…

A: Given that A discus thrower accelerates adiscus from rest to a speed of 25.0 m/s by whirling it…

Q: A space station consists of a giant rotating hollow cylinder of mass 106 kg including people on the…

Q: Vinyl records are 11 3/4 inches in diameter and spin at a rate of 33 1/3 rpm. What is a records…

Q: You have a grindstone (a disk) that is 81.0 kg, has a 0.430-m radius, and is turning at 89.0 rpm,…

Q: A ferris wheel rotating at 20 rad/s decelerates with a constant angular acceleration of -5.0rad/s^2.…

Q: A wheel moves uniformly from rest to an angular speed of 162rev/s in 27s. What is angular…

A: Given wi=0 wf=162rev/sec t=27 sec

Q: 9.10. •• An electric fan is turned off, and its angular velocity decreases uniformly from 500…

Q: A discus thrower accelerates a disc with mass of 2 kg from rest wit four full turns (revolutions)…

A: We have givenMass of disc (m)=2 kg Four turn of revolution (θ)=4×2π=8π radInitila velocity u=0…

Q: 7.4 Andrea and Chuck are riding on a merry-go-round. Andrea rides on a horse at the outer rim of the…

Q: Convert an angular speed of 900 rad/s (radians per second) to rpm (revolutions per minute).

Q: Explain in detail why a spinning ice-skater's angular speed increases when she pulls in her arms…

A: When the arms are pulled close to her body the moment of inertia( mr2)decreases because the mass…

Q: 5. A 0.400 kg mass is attached to the end of a string and is to rotate about the other end, 0.700 m…

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: Suppose an ice skater has moment of inertia of 8 kg m^2 while spinning with arms wide open and 6 kg…

Q: While riding on a carnival Ferris wheel, Sam Nasty horses around and climbs out of his chair and…

Q: What is the angular momentum of a 0.315 kg ball rotating on the end of a thin string in a circle of…

Q: Inthe "Rotational Motion experiment (shown in the figure below), when we increase the hanging mass…

A: When we increase the mass then the tension in the rope increases. now tension = moment of inertia *…

Q: 5. Determine the constant angular velocity of the vertical shaft of the amusement ride if p = 45°.…

A: In the given question, length of the cables = 8m Angle made by the cable with the vertical axis = ϕ…

Q: The rotor on a helicopter turns at an angular speed of 3.11 ✕ 102 revolutions per minute. Express…

Q: 6. A record that is turning at 45 rpm has an angular velocity of radians/second.

Q: A 0.30 m-radius automobile tire rotates how many rad after starting from rest and accelerating at a…

A: From the equation of circular motion θ = ωi t+ αt2/2 Here, θ = angular displacement, ωi = initial…

Q: "Two flies land on a spinning lazy Susan on the table. One lands on the outer edge and the other one…

A: angular velocity is given by ? = Δθ/Δt Thus we can see that angular velocity only depends on the…

Q: 7- If a disk rotates at a constant rate of 1290 rev/min about its central axis. Then its angular…

A: Given, A disk rotate at a constant rate of 1290 rev/min about it's central axis.

Q: 1-The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during…

A: Given: Initial speed of the blades of the blender, Ni = 6500 rpm. Time taken for the blades to come…

Q: Which will cause a greater increase in the angular velocity of a disk: doubling the torque applied…

A: Greater increase in angular speed

Q: Pilots can be tested for stresses of flying high speed jets in a whirling human centrifuge that…

A: a. Write the equation of motion in rotational mechanics and solve for angular acceleration.

Q: Suppose the polar ice sheets broke free and floated toward Earth’s equator without melting. What…

A: The expression for angular momentum (L) is: L=Iω Here, I is the moment of inertia, ω is the angular…

Q: A wheel has a radius of 35 cm and is spinning at a rate of 2 radians/s. The wheel is marked 10 cm…

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

"How long does it take for a disk revolving at 60 RPM to come to stop, if it is subjected to an angular acceleration of "-n 12" rad/sec2?"
O 1s
2s
3s
4 s
None of these

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

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

Suppose a piece of dust finds itself on a CD. If the spin rate of the CD is 500 rpm, and the piece of dust is 4.3 cm from the center, what is the total distance traveled by the dust in 3 minutes? (Ignore accelerations due to getting the CD rotating.)
Suppose a piece of dust has fallen on a CD. If the spin rate of the CD is 500 rpm, and the piece of dust is 4.3 cm from the center, what is the total distance traveled by the dust in 3 minutes? (Ignore accelerations due to getting the CD rotating.)
Andrea and Chuck are riding on a merry-go-round. Andrea rides on a horse at the outer rim of the circular platform, twice as far from the center of the circular platform as Chuck, who rides on an inner horse. When the merry-go-round is rotating at a constant angular speed, Andreas angular speed is (a) twice Chucks (b) the same as Chucks (c) half of Chucks (d) impossible to determine.
A space station consists of a giant rotating hollow cylinder of mass 106kg including people on the station and a radius of 100.00 m. It is rotating in space at 3.30 rev/min in order to produce artificial gravity. If 100 people of an average mass of 65.00 kg spacewalk to an awaiting spaceship, what is the new rotation rate when all the people are off the station?
In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm about the elbow. If the angular velocity of the ball about the elbow joint is 30.0 rad/s and the ball is 1.30 m from the elbow joint, what is the velocity of the ball?
In terms of angular momentum, what is the advantage of giving a football or a rifle bullet a spin when throwing or releasing it? Figure 10.36 The image shows a view down the barrel of a cannon, emphasizing its rifling. Rifling in the barrel of a canon causes the projectile to just as is the case for rifles (hence the name for the grooves in the barrel). (credit Elsie esq., Flickr)
Andrea and Chuck are riding on a merry-go-round. Andrea rides on a horse at the outer rim of the circular platform, twice as far from the center of the circular platform as Chuck, who rides on an inner horse. When the merry-go-round is rotating at a constant angular speed, Andreas angular speed is (a) twice Chucks (b) the same as Chucks (c) half of Chucks (d) impossible to determine.
A carnival carousel accelerates nonuniformly from rest, moving through an angle of 8.60 rad in 6.00 s. If its turning at 3.30 rad/s at that time, find (a) its average angular speed, and (b) average angular acceleration during that time interval. (See Section 7.1.)
Conservation of Angular Momentum 52.A disk of mass 2.0 kg and radius 60 cm with a small mass of 0.05 kg attached at the edge is rotating at 2.0 rev/s. The small mass suddenly separates from the disk. What is the disk’s final rotation rate?
A cat usually lands on its feet regardless of the position from which it is dropped. A slow-motion film of a cat falling shows that the upper half of its body twists in one direction while the lower half twists in the opposite direction. (See Fig. CQ8.14.) Why does this type of rotation occur? Figure CQ8.14
A grindstone increases in angular speed uniformly from 4.00 rad/s to 12.0 rad/s in 4.00 s. (a) Calculate the grindstones angular acceleration. (b) Through what angle does it turn during that time? (See Section 7.2.)
A cat usually lands on its feet regardless of the position from which it is dropped. A slow-motion film of a cat falling shows that the upper half of its body twists in one direction while the lower half twists in the opposite direction. (See Fig. CQ11.10.) Why does this type of rotation occur?