A grindstone rotates at constant rotational acceleration of 0.35 rad/s2. At time t1 = 0 s, it has a rotational velocity of -2.8 rad/s and a reference line on it is horizontal, at the rotational position 0.0 rad. At what time does the grindstone change its direction of rotation? O 5s O 8 8 O 4.5 s O 3.2 s

A grindstone rotates at constant rotational acceleration of 0.35 rad/s2. At time t1 = 0 s, it has a rotational velocity of -2.8 rad/s and a reference line on it is horizontal, at the rotational position 0.0 rad. At what time does the grindstone change its direction of rotation? O 5s O 8 8 O 4.5 s O 3.2 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: A ball is tied to the end of a cable of negligible mass. The ball is spun in a circle with a radius…

A: Given data: The radius is r = 2 m The revolutions in every t = 10 s is N = 7 The angualr speed…

Q: A compact disc in a turntable rotates through 6.0 rad in 4.4 s as it is accelerated uniformly from…

Q: The ladybug in our experiment is placed 10 cm from the center of the turntable and rotate clockwise…

A: Given that: Rotation radius (R)=10cm Time(t(=)=2.35sec theta=390deg. To find: Angular velocity

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

A: Given data The angular speed of the centrifuge is given as, ω0=3550 rev/min. The angular…

Q: A centrifuge is rotating at 5000 rev/min when a brake is applied causing a deceleration of -5.0…

Q: A car speeds up uniformly while rounding a turn of radius 13 meters. The car's angular speed…

Q: A centrifuge in a biochemistry laboratory rotates at an angular speed of 3,550 rev/min, clockwise…

A: Solution: as given that angular speed of 3,550 rev/min, clockwise it rotates through 54.0…

Q: n 2010, the Sikorsky's X2 helicopter became the world's fastest helicopter, flying at 249 miles per…

Q: A ride rotates at, θ(t) = (π/4) t − (π/16)t2 + (π/24)t3 . i. What is the angular velocity as a…

Q: A centrifuge accelerates uniformly from rest to 19000 rpm in 280 s . Part A Through how many…

Q: An automobile engine slows down from 3400 rpm to 1200 rpm in 2.3 s. Part A Calculate its angular…

Q: An Olympic speed skater increases her velocity from Vi =6.54 m/s to Vf=9.19 m/s over a period of 5.2…

Q: A wheel is spinning at 43 revolutions per minute (rpm) with its spin axis horizontal. After 9.8 s,…

Q: A child is riding a merry-go-round that is turning at 3.60 rpm. If the child is standing 4.65 m from…

A: Given: Angular velocity, ω=3.60 rpm Distance from center, r=4.65 m Let's find linear velocity of…

Q: Human centrifuges are used to train military pilots and astronauts in preparation for high-g…

A: Centripetal acceleration =ω2R Linear speed=V=ωR where ω=angular speed R =radius

Q: A Ferris wheel with radius R = 15.0 m is turning about a horizontal axis through its center in the…

A: Given that,Radius R =15 mlinear velocity of passenger V =7.40 m/ s

Q: At a time t = 3.40 s, a point on the rim of a wheel with a radius of 0.180 m has a tangential speed…

A: t = 3.4 s r = 0.180 m v = 45 m/s atan = 10.6 m/s2 To find = a) constant angular acceleration…

Q: A disk of radius 3.00 m rotates like a merry-go-round as given by the function θ = 2.00t^4 +…

A: Radius of the disk, r=3 m The angular position of the point on the rim at time t, θ=2t4+6t2 Time at…

Q: You are working in a biology lab and learning to use a new ultracentrifuge for blood tests. The…

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

Q: QUESTION 10 An object initially moving with a velocity of 5.00 m/s South, slows down and changes its…

A: Q10. Remember that average acceleration is given by: a_avg = change in velocity/time interval a_avg…

Q: You have a 1.00 m long string with a bob attached to its end. You are swinging it around your head,…

A: Given: Radius of string, r = 1 m Time of complition of 1 revolution, t = 2 sec

Q: The ability of the human eye to rapidly rotate was studied using contact lenses fitted with…

Q: A. A wheel accelerates for 20 s from rest to 30,000 revolutions per minute. What is the the average…

A: (A) Given : Initial angular velocity, ω0 = 0 rad /s Final Angular velocity,…

Q: The ability of the human eye to rapidly rotate was studied using contact lenses fitted with…

A: In this question we have to find the average angular velocity of the eye. Please give positive…

Q: A Ferris wheel has a radius of 42.4 feet. The bottom of the Ferris wheel sits 0.8 feet above the…

A: GivenA Ferris wheel has a radius of 42.4 feet. The bottom of the Ferris wheel sits 0.8 feet above…

Q: The blades in a blender rotate at a rate of 4.250 E+3 rpm. When the motor is turned off during…

Q: A particle undergoes uniform motion. the speed of the particle is 10.0m/s. and the radius of its…

A: Given data: The speed of the particle is v=10.0 m/s. The radius of the circular path is R=3.20 m.…

Q: June started winding up her arm holding a baseball, moving it around her shoulder in a circle, to…

A: Given data: Radius (r) = 0.5 m Angular velocity (ω) = 2 rad/s Angular displacement (Δθ) = 10…

Q: A centrifuge accelerates uniformly from rest to 13000 rpm in 180 s. A. Through how many…

A: The acceleration is uniform. So, we can calculate the average velocity as shown below.

Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

A grindstone rotates at constant
rotational acceleration of 0.35
rad/s2. At time t1 = 0 s, it has a
rotational velocity of -2.8 rad/s and a
reference line on it is horizontal, at
the rotational position 0.0 rad. At
what time does the grindstone
change its direction of rotation?
O 5s
O 8s
O 4.5 s
O 3.2 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 with 2 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

A model of a helicopter rotor has four blades, each of length 3.4 mm from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 500 rev/minrev/min. 1. What is the linear speed of the blade tip? Express your answer in meters per second. 2. What is the radial acceleration of the blade tip expressed as a multiple of the acceleration due to gravity, gg? Express your answer as a multiple of gg. 3.
You are at a playground with a merry-go-round, which is initially sitting still. You push on it, causing it to accelerate in the angle at a rate of 1.2 rad/s2. If you push for 3 seconds How many radians will the merry-go-round have turned through during that time?
A Ferris wheel rotates at an angular velocity of 0.26 rad/s. Starting from rest, it reaches its operating speed with an average angular acceleration of 0.026 rad/s2. How long does it take the wheel to come up to operating speed? s
A centrifuge in a medical laboratory rotates at an angular speed of 3550 rev/min. When switched off, it rotates through 46.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge. rad/s2 Need Help? Read It
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 centrifuge in a medical laboratory rotates at an angular speed of 3450 rev/min. When switched off, it rotates through 50.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge. rad/s2
A centrifuge in a biochemistry laboratory rotates at an angular speed of 3,650 rev/min, clockwise (when viewed from above). When switched off, it rotates through 48.0 revolutions before coming to rest. Assuming it is constant, what is the magnitude of angular acceleration (in rad/s²)? rad/s² What is the direction of the angular acceleration (again, when viewed from above)? clockwise оо counterclockwise The magnitude is zero.
SS fe 1. A Ferris wheel with a diameter of 36.0 m starts from rest and achieves it maximum operational tangential speed of 2.70 m/s in a time of 22.0 s. What is the magnitude of the wheel's angular acceleration? rad/s² 60 ssf6