A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s4. What is the timeinterval required for it to reach a 4.2-rad displacement after starting from rest?1.8 sB 16 sC) 2.0 sD 18 s

Answered: Image /qna-images/answer/a4410fa6-64d9-47e7-9892-a9b950f7d613.jpg

A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s4. What the time interval required for it to reach a 4.2-rad displacement after starting from rest? A 1.8 s B 16 s C) 2.0 s D 18 s

A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s4. What the time interval required for it to reach a 4.2-rad displacement after starting from rest? A 1.8 s B 16 s C) 2.0 s D 18 s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 15P: A car initially traveling eastward turns north by traveling in a circular path at uniform speed as...

See similar textbooks

Related questions

Q: A wheel 30 cm in diameter accelerates uniformly from 250 rpm to 380 rpm in 6.2 s .How far will a…

A: The objective of the question is to find out the distance traveled by a point on the edge of the…

Q: A drill, at its highest speed, rotates at 6500 rpm. If the drill takes 0.590 s to go from rest to…

Q: A vehicle engine slows down from 3300 rpm to 1100rpm in 2.5s. What is the angular acceleration? a.…

A: Given

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

Q: When an old LP turntable was revolving at 331 rpm, it was shut off and uniformly slowed down and…

Q: A bus starts from rest and travels with a constant acceleration of 1.6 m/s- for 10.3 s. What is the…

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

Q: Your 64 cm diameter car tire is rotating at 3.8 rev/s when suddenly you press down hard on the…

A: SOlution: Given that 64 cm diameter car tire is rotating at 3.8 rev/s After traveling 270 m, the…

Q: A record is spinning around on a record player and has a period of 4.00 s. The record has a diameter…

Q: A turntable rotating at 24 rev/min is shut off. It brakes with constant angular acceleration and…

Q: A rotating disk is initially spinning at w 7.4 rev/s, slows down and stops in 11.6 s. What is the…

A: Option d is the right answer -0.64 rev /s^2

Q: A grinding wheel, initially at rest, is rotated with constant angular acceleration α = 7.0 rad/s^2…

Q: An automobile engine slows down from 3200 rpm to 1200 rpm in 2.0 s . A.Calculate its angular…

Q: The blades in a blender rotate at a rate of 6300 rpm. When the motor is turned off during operation,…

A: Given that the blades in a blender rotate at 6300 rpm.

Q: During startup of a power plant, a turbine accelerates from rest at 0.50 rad/s2. How long does it…

Q: A marble rolls down an incline at 27° from rest. a. What is its acceleration? a 4.45 m/s² b. How far…

A: Given that:u=0 m/sθ=27°

Q: A drill bit is able to reach 2000 rpm in 0.50 s. Assuming a constant angular acceleration, how many…

A: Given: The final angular speed of the drill is dω=2000 rpm= 2000×2π60 s=209.44 rads. Time required…

Q: A rotating disk is initially spinning at w= 6 rev/s, slows down and stops in 19.7 s. What is the…

A: Initial angular velocity , ωi = 6 rev/s Time taken , T = 19.7 sec To find = average angular…

Q: The end of the cutting cord on a gas-powered weed cutter is 0.21 m in length. If the motor starts…

Q: A bicycle wheel is rotating at 46 rpmrpm when the cyclist begins to pedal harder, giving the wheel a…

Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…

A: The objective of the question is to determine the angular velocity, linear velocity, angular…

Q: A phonograph record accelerates from rest to 33.0 rpm in 4.53 s. How many revolutions does it go…

A: It is given that

Q: and is not spinning. A 0.2 g ant is on the disc and is 5 cm away from the center. The turntab…

A: GivenMass of ant=0.2 g=0.2×10-3 kgDistance of ant from center, r=5 cm=0.05 mAfter , t=0.6 s ,…

Q: A Ferris wheel rotates at an angular velocity of 0.26 rad/s. Starting from rest, it reaches its…

A: solution as

Q: A centrifuge in a medical laboratory rotates at an angular speed of 3550 rev/min. When switched off,…

Q: A disk spins at 4.0 revolutions/second. What is its period, in second?

A: Solution: Given speed (N) = 4 rev /s ∴angular speed = 2πn Now, 1 revolution = 2π rad Therefore,…

Q: A circular disc is initially rotating at 2.2 rad/s and has a constant angular acceleration. After…

Q: The bus's wheels have a radius 26 cm. The bus starts at rest and accelerates at a constant speed…

Q: When a fan is turned off, its angular speed decreases from 168 rpm to 64.0 rpm in 6.08 s.

A: Given: Initial angular speed of the fan ω∘ = 168 rpm final angular velocity of the fan ω = 64.0 rpm…

Q: A rotating disk is initially spinning at w=2.7 rev/s, slows down and stops in 19.4 s. What is the…

A: The disk’s average angular acceleration can be determined by using the rotational kinematics…

Q: A coffee grinder accelerates from rest to 300 revolutions per minute in 0.800 s. Then keep speed…

A: initial angular velocity = W0 = 0 (rest) final angular velocity = W = 300 rpm = 300x2π60 = 31.4…

Q: A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is the…

Q: The blades in a blender rotate at a rate of 6200 rpmrpm . When the motor is turned off during…

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 fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s4. What is the time
interval required for it to reach a 4.2-rad displacement after starting from rest?
1.8 s
B 16 s
C) 2.0 s
D 18 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

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

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

What is the average speed in mi/h of a person at the equator as a result of the Earths rotation? (Take the radius of the Earth to be RE = 4000 mi.)
A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in Figure P7.15. The length of the arc ABC is 235 m, and the car completes the turn in 36.0 s. (a) Determine the cars speed. (b) What is the magnitude and direction of the acceleration when the car is at point B? Figure P7.15
A coffee grinder accelerates from rest to 300 revolutions per minute in 0.800 s. Then keep speed constant angular for 2.20 s. How many rotations did the mill after 3.00 s?
A drill bit is able to reach 2000 rpm in 0.50 s. Assuming a constant angular acceleration, how many revolutions does this bit make as it ramps up to 2000 rpm? ANS = 8.3 rev.
A wheel revolving at 300 rpm decelerates at 5 rad/s 2 . How long before the wheelstops?
2. An object is swung in a horizontal circle. If it starts at position zero (0 rad), has an acceleration of 3.5 rad/s², and swings for 3.0 seconds, how far around the circle does it travel?
Your 64 cm diameter car tire is rotating at 3.8 rev/s when suddenly you press down hard on the accelerator. After traveling 270 m, the tire's rotation has increased to 5.2 rev/s. What is the tire's angular acc? Give the answer in rad/s2.
4. The rod OA rotates about point such that e = t3 rad. At the same time, the collar B is sliding outward along OA so that r = 100t mm. If in both cases t is in seconds, determine the velocity and acceleration of the collar when t = 1s.
A centrifuge is rotating at 5000 rev/min when a brake is applied causing a deceleration of -5.0 rad/s2. How many revolutions will the centrifuge make before stopping?
A disk spins at 4.0 revolutions/second. What is its period, in second?
Disk B is at rest when it is brought into contact with disk A which is rotating freely at 450 rpm clockwise. After 6 s of slippage, during which each disk has a constant angular acceleration, disk A reaches a final angular velocity of 140 rpm clockwise. Determine the angu- lar acceleration of each disk during the period of slippage. A 3 in. B 5 in.
A rotating disk is initially spinning at w 7.4 rev/s, slows down and stops in 11.6 s. What is the magnitude of the disk's average angular acceleration? (in rev/s^2) 1.28 .a O 42.92 .b O 0.64.c O 0.64-.d O