A Ferris wheel is moving at an initial angular velocity of 1.5 rev every 30 s while rotating in aclockwise direction. If the operator then brings it uniformly to a stop in 3.0 min, what is theangular acceleration? (a) Include both the magnitude (in SI units) and direction of the angularacceleration. (b) Through how many revolutions will the Ferris wheel rotate while coming toa stop? Include a relevant diagram of the situation.

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Answered: A Ferris wheel is moving at an initial…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 30P: A point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of...

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Explain why centripetal acceleration changes the direction of velocity in circular motion but not its magnitude.
A point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of 0.700 m/s in 1.75 s. At t = 1.25 s, find the magnitude and direction of (a) the radial acceleration, (b) the tangential acceleration, and (c) the total acceleration of the point.
A turntable has a diameter of 40.0 cm. It rotates at a rate of 40 revolutions per second (rps) thanks to the action of a motor. It slows its speed evenly to 15 rps in 10 seconds. Calculate: d) The magnitude of the total acceleration vector.e) The angle, in radians, for the turns in that time interval.f) The arc length traveled by a point on the saucer in that time interval.
Please answer the following question(s): 1. A helicopter blade spins at exactly 130 revolutions per minute. Its tip is 5.00 m from the center of rotation. Hint: What is the shape of the path described by the helicopter blade? How do you find the length of this path? (a) What is the total distance traveled by the tip per minute? Enter to 3 significant figures Distance: m (b) What is the average speed of the tip of the blade? Enter to 3 significant figures Average speed: m/s (c) What is the average velocity over one revolution? Enter to 3 significant figures Average velocity: m/s
I am having trouble with a 3 d motion problem. The problem is as follows, "A point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of 0.600 m/s in 1.80 s. At t = 1.29 s, find the magnitude and direction of each of the following." The problem asks me to find the radial acceleration, the tangential acceleration, and the total acceleration of the point. Thanks for the help.
An object rotates about a fixed axis, and the angular position of a reference line on the object is given by 0=1et, where 0 is in radians and t is in seconds. Consider a point on the object that is 1.46 m from the axis of rotation. At t=1.7s, find the magnitude of the point's radial component of acceleration? Round your answer to zero decimal places.
How fast (in rpm) must a centrifuge rotate if a particle 7.8 cm from the axis of rotation is to experience an acceleration of 1.2×105 g's? Express your answer using two significant figures.
A child turns a ball through a rope tied to it with a vertical circle. The ball is seen to turn 160 times in 8 seconds and the centrifugal acceleration is 7,6[m/s2]. What is the frequency, period, angular velocity, linear velocity and radius?
A centrifuge in a forensic investigation 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)?
A curve ball is a type of pitch in which the baseball spins on its axis as it heads for home plate. If a curve ball is thrown at 33.2 m/s (74 mph) with a spin rate of 31 rev/s, how many revolutions does it complete before reaching home plate? Assume that home plate is 18.3 m (60 ft) from the pitching mound and that the baseball travels at a constant velocity. Express your answer in revolutions per second to three significant figures. VE ΑΣΦ ? rev
A rotating fan completes 1200 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.10 m. What is the magnitude of its acceleration?
An astronaut is rotated in a horizontal centrifuge at a radius of 5.0 m. (a) What is the astronaut’s speed if the centripetal acceleration has a magnitude of 7.0g? (b) How many revolutions per minute are required to produce this acceleration? (c) What is the period of the motion?

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