10. An object initially at rest starts rotating with a constant angular acceleration. If this object rotates through an angle in time 0.5t, through what angle did it rotate in time t? a. 40 b. (1/2)0 c. (1/4) e d. 20

10. An object initially at rest starts rotating with a constant angular acceleration. If this object rotates through an angle in time 0.5t, through what angle did it rotate in time t? a. 40 b. (1/2)0 c. (1/4) e d. 20

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: 4:12 C all 79% Question 1 Not yet answered Points out of 1.00 P Flag question A disc of radius of 15…

A: Here, Given π=3. Now,

Q: A sphere rolls down a 23.5 degree incline starting from rest to a height of 2.25 meters. How fast…

A: Given data: Height, h = 2.25m Angle, θ=23.5°

Q: An object rotates a full circle of radius 2m in 5 sec. What is the tangential speed of the object. O…

A: Let θ be the angle swept out by the object in that period of time. Then we define the (average)…

Q: 11. A wheel is rotating with an angular speed of (t + 1) (rad/s). Calculate the centripetal…

Q: 3. A car starting from rest reaches a speed of 900 rpm at time "t" and then immediately decelerated,…

A: The equation of motion for uniform circular motion is similar to the equation of motion for…

Q: A disk of radius r = 87.5 cm and rotational inertia, about the disk axis on which it is fixed, is…

A: Write a given values of this question. r=87.5cm=0.875mI=3.1kgm2F=24.9N

Q: A ceiling fan is rotating 245 times each minute. a. What is its frequency? b. What is its period of…

Q: 3. A ceiling fan is spinning at 0.9 rev/sec when you turn down the switch. The fan's angular speed…

A: Given,ωi=0.9 rev/sα=0.2 rev/s2 t=3s Note: Since we only answer up to 3 sub-parts, we’ll answer the…

Q: .A CD-ROM drive in a computer spins the 12-cm-diameter disks at 7300 rpm. What is a disk's period in…

A: Given that:Diameter of disk, d=12 cmRotational speed of disk, ω=7300 rpm

Q: A wheel has its speed increased from 120 to 240 r/min in 20 s. a. What is the angular acceleration?…

A: Given that,The initial angular speed of wheel : 120 (rpm)The final angular speed of wheel : 240…

Q: 1. An object is swung in a horizontal circle with a radius of 0.5 m. If the object makes one full…

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

A: Angular acceleration is the time rate of change in the angular velocity

Q: 8. You want to ride a Ferris wheel with a 100-m height. Before buying a ticket, you challenge…

A: Answer D. 1.34 rotations per minute

Q: 1. An electric motor rotating a workshop grinding wheel at a rate of 71.9 rev/ min is switched off…

A: Given data: Angular velocity is ω=71.9 rev min-1=71.9 60×2π rad s-1=7.5 rad s-1 The angular…

Q: A wheel initially has an angular velocity of 6.4 rad/s but it is slowing at a rate of 8.1 rad/s?. By…

A: Given,initial anglular velocity of wheel is, ω∘ = 6.4 rad/sangular deceleration, α= 8.1 rad/s2

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

Q: A ceiling fan is rotating 245 times each minute. a. What is its frequency? b. What is its period of…

A: a) Frequency is equal the number of cycle or in other words rotation per second. Therefore, Rotation…

Q: 32. A 40.0 cm diameter pulley is attached to a motor and is rotating at 1,800 rev/min. What is the…

A: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: A solid cylinder with mass of 5.0 kg and a radius of 0.080 m starts from rest at a height of 3.00 m…

A: potential energy at top = kinetic +rolling energy at bottom

Q: 1. The relation between the angle of rotation (θ) in radians and time (t) in seconds of a rotating…

A: Given: θ = 2t3 + 3t2 + 10 Formula: Angular velocity, ω=dθdtAngular acceleration, α=dωdt

Q: 13. Calculate the centripetal force needed to keep a 10 kg child in a uniform circular motion having…

Q: A bicycle wheel (radius = 0.15 m) is turning at 190 rpm. Over what linear distance will a point on…

A: Concepts of linear and angular velocity: As linear velocity is rate of change of position, angular…

Q: 1. A ball is hanging on the end of a 0.36 m long string which is being swung such that the ball…

A: Length of the string is L = 0.36 m Centripetal acceleration is a = 55.8 m/s2

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: Suppose that a disk rotates through five revolutions in 4 seconds. b. What is its average…

Q: 1. A 78-rpm record turns at the rate of 78 revolutions per minute as its name implies. Through what…

Q: A bicycle tire is rotating counterclockwise at 3.141 rad/s. Over the course of 10.0 seconds, the…

Q: A point 10 feet from the center of a rotating platform covers a distance of 300 feet in 15 sec. If…

A: The angular velocity of an object about its axis of rotation is equal to the rate of change of…

Q: ppose seconds. What is its displacement in radians in this time? What is its average rotational…

A: Given value--- angular displacement = 5 rev. time = 4 sec. We have to find--- displacement?…

Q: The instantaneous rate of change of acceleration is known as "jerk". Which of the following…

A: ( If you have any questions related to this problem please feel free to ask me).

Q: E5. A bicycle wheel is rotationally accelerated at the constant rate of 1.2 rev/s². a. If it starts…

A: a) Apply the first angular kinematic equation and substitute the required values. ωf=ωi+αtωf=0+(1.2…

Q: 5. A car m = 1230. kg has wheels with a radius R = 0.230 m. The car starts at rest and the wheels…

Q: 3.) A spinning disk completes 2.9 revolutions. a. The displacement in radians is... b. It takes 2.3…

Q: 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…

Q: . A certain planet spins on its axis 4 a day and orbits the sun 13 a year. Determine the average…

Q: 11. The largest helicopter ever built in the United States was the Sikorski CH-53E "Super Stallion".…

Q: A rotating car wheel has an angular acceleration of 0.042 rad/s^2. The time in which the angular…

Q: 1. An electric motor rotating a workshop grinding wheel at a date of 71.9 rev/min is switched off…

A: Solution: As per the given data, For Constant Acceleration or deceleration, in this case a) We know…

Q: A car travels east at w = 3t² rad/s. The tangential acceleration of the top point (A) of the rim is.…

Question

10. An object initially at rest starts rotating with a constant
angular acceleration. If this object rotates through an angle in
time 0.5t, through what angle did it rotate in time t?
a. 40
b. (1/2)0
c. (1/4) 0
d. 20

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

Step 1

VIEW

Step 2

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

14. A bicycle wheel is rotating at 50 rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.50 rad/s². (a) What is the wheel's angular velocity, in rpm, 10 s later? (b) How many revolutions does the wheel make during this time?
11. (1 p) Calcule el momento angular de un disco de 2.4 kg y 4.3 cm de diámetro, que rota a 600 rpm.
3. A car starting from rest reaches a speed of 900 rpm at time "t" and then immediately decelerated, it takes the car a time "t" to stop. Determine the total number of revolutions of the wheel of the car. The total time elapsed is trtt=10 seconds.
9. The brakes are applied steadily on a car initially travelling at 86.5 km/hr. The braking gives the 15.3 cm radius wheels an angular acceleration of -2.13 rads/s?. How far did the car go after 16.9 seconds?a. s= 395 metersb. s= 500 metersc. s = 459 metersd. s= 359 meters
3. A typical hard disk in a desktop computer is a uniformly solid, 400 gram disk 3.5 inches in diameter, and takes 70 milliseconds to spin from rest up to a frequency of 7200 revolutions per minute (r.p.m.). A) What is the period of the disk in seconds when it's at its final spinning rate? B) What is its angular speed in rad/s when it's at its final spinning rate? C) Assuming it is constant throughout this spin-up process, what is the angular acceleration of the disk in rad/s?? D) How many revolutions does the disk go through during this spin-up process? E) Which is bigger, the centripetal force felt by a dust particle stuck to the edge of the disk halfway through its spin-up or the centripetal force felt by an identical dust particle stuck halfway to the edge of the disk when it's at full speed?
29 The moon revolves around the Earth in 3 months, which of the following is 0 for the moon? A. Its angular acceleration around the Earth. C. Its angular displacement around the Earth. B. Its angular velocity around the Earth. D. Its period around the Earth.
E7. Starting from rest, a merry-go-round accelerates at a con- stant rate of 0.2 rev/s². a. What is its rotational velocity after 5 s? b. How many revolutions occur during this time?
A record player rotates a record at 45 revolutions per minute. When the record player is switched off, it makes 4.0 complete turns at a constant angular acceleration before coming to rest. What was the magnitude of the angular acceleration (in rads/s²) of the record as it slowed down? A. 0.44 rad/s² B. 0.88 rad/s² C. 1.5 rad/s² D. 2.8 rad/s² D B O A O C
6. A ceiling fan turns at a rate of 20 RPM what is its speed in radians per second, and the speed of a tip of a 50 cm fan blade in m/s?
A 350-kg disk (with uniform density) is shown below. Its rotation axis is through its center. If the disk is initially at rest, how long does it take to reach an angular velocity of 25 rad/s? 20 N 18 N 0.25 m 0.75 m 1.0 m 0.5 m 16 N А. 152.6 s D. 163.5 s Е. F. В. 164.5 s 141.1 s С. 120.0 s 137.0 s
2. Write a detailed solution. Identify the given quantities and unknowns. Label them properly.
A flywheel turns through 60 rev as it slows down from an angular speed of 12 rad/s to a stop. What is its angular acceleration? OA. 0.05% rad/s² B. 0.30 rad/s² OC. 0.60m rad/s² OD.-0.30 rad/s² E. -0.60 rad/s²