At t=0 a grinding wheel has an angular velocity of 30.0 rad/s. It has a constant angular acceleration of 35.0 rad/s² until a circuit breaker trips at time t= 1.70 s. From then on, it turns through an angle 438 rad as it coasts to a stop at constant angular acceleration. Y ▾ Through what total angle did the wheel turn between t= 0 and the time it stopped? Express your answer in radians. 8= Submit Part B ΠΕΠΙ ΑΣΦ to Part C At what time did it stop? Express your answer in seconds. Submit 3 Request Answer ΑΓΙΑΣΦ 3 → Request Answer → OWC C C DMG] ? ? What was its acceleration as it slowed down? Express your answer in radians per second squared. rad S

At t=0 a grinding wheel has an angular velocity of 30.0 rad/s. It has a constant angular acceleration of 35.0 rad/s² until a circuit breaker trips at time t= 1.70 s. From then on, it turns through an angle 438 rad as it coasts to a stop at constant angular acceleration. Y ▾ Through what total angle did the wheel turn between t= 0 and the time it stopped? Express your answer in radians. 8= Submit Part B ΠΕΠΙ ΑΣΦ to Part C At what time did it stop? Express your answer in seconds. Submit 3 Request Answer ΑΓΙΑΣΦ 3 → Request Answer → OWC C C DMG] ? ? What was its acceleration as it slowed down? Express your answer in radians per second squared. 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

Similar questions

An automobile with 0.300 m radius tires travels 70,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear? x revolutions A truck with O.600 m radius tires travels at 29.0 m/s. At how many radians per second are the tires rotating? What is this in rpm? гad/s rpm
At t = 0s a grinding wheel has an angular velocity of 24.0 rad/s. It has a constant angular acceleration of 30.0 rad/s2 until a circuit breaker trips at t = 2.3 s. From then on it coasts to a stop over the next 10.0 seconds at constant angular acceleration. Through what total angle did the grinding wheel rotate? (Give your answer in radians.)
A “blink of an eye” is a time interval of about 150 ms for an average adult. The “closure” portion of the blink takes only about 55 ms. Let us model the closure of the upper eyelid as uniform angular acceleration through an angular displacement of 15.4°. a. What is the value of the angular acceleration the eyelid undergoes while closing? answer in rad/s^2 b. What is the tangential acceleration of the edge of the eyelid while closing if the radius of the eyeball is 1.25 cm? answerin m/s^2
A thread is wrapped around a cylindrical spool, of radius R = 2.0 cm, whose central axis is fixed on a support. Somebody’s hand pulls the thread off the spool. This causes the spool to rotate. The acceleration of the person’s hand is constant. Starting from rest, it takes 10 seconds for 5.0 meters of thread to be pulled off. What is the angular speed of the spool at time t = 2.0 s?
At the instant w4 = 5 rad/s, pulley A is given an angular acceleration a = Determine the magnitude of acceleration of point B on pulley C when A rotates 3 revolutions. Pulley C has an inner hub which is fixed to its outer one and turns with it. (0.80) rad/s?, where 0 is in radians. WA 50 mm 40 mm 60 mm
A wheel of diameter 60.0 centimeters accelerates uniformly about its center from 120 rpm to 380 rpm in 3.00 seconds. Determine the following: Part A Its angular acceleration. Use 'rad/s^2' for your units. Part B The linear acceleration of a point on the edge of the wheel 1.50 s after it has started accelerating.
A compact disk player has just been turned off. A disk decelerates uniformly from an initial angular velocity of 8.65 rev/s. The disk rotates through 4.25 revolutions before coming to rest. What is the tangential acceleration of a point on the disk 4.75 cm from the axis?
At time t=0 a grinding wheel has an angular velocity of 25.0 rad/s. It has a constant angular acceleration of 32.0 rad/s2 until a circuit breaker trips at time t= 1.80 s. From then on, the wheel turns through an angle of 433 rad as it coasts to a stop at constant angular deceleration. What was the wheel's angular acceleration as it slowed down?
The angular speed of a rotating platform changes from ω0 = 3.6 rad/s to ω = 6.4 rad/s at a constant rate as the platform moves through an angle Δθ = 5.5 radians. The platform has a radius of R = 12 cm. Calculate the angular acceleration of the platform α in rad/s2.
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.200 rev/s. The magnitude of the angular acceleration is 0.881 rev/s². Both the the angular velocity and angular accleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.800 m. Part E Calculate the magnitude ar of the radial (or centripetal) acceleration of the point at the end of the fan blade. ▾ View Available Hint(s) Hint 1. Definition of radial acceleration Radial acceleration ar for an object moving with tangential velocity vt in a circular path of radius r is given by Ap = v²/ pº V ΑΣΦ ar = 0.96 *** Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Review | Constan ? m/s²
A figure skater begins spinning counterclock- wise at an angular speed of 4.9 T rad/s. Dur- ing a 4.8 s interval, she slowly pulls her arms inward and finally spins at 7.3 T rad/s. What is her average angular acceleration during this time interval? Answer in units of rad/s².
An object rotates about a fixed axis, and the angular position of a reference line on the object is given by θ = 0.580e6t, where θ is in radians and t is in seconds. Consider a point on the object that is 7.00 cm from the axis of rotation. At t = 0, what are the magnitudes of the point's (a) tangential component of acceleration and (b) radial component of acceleration?