4. The blade of a steel cutter is rotating at a speed of 600 rev/min. If the radius of the blade is 7.5 cm, determine the (a) angular speed, (b) tangential speed and (c) radial acceleration of a point at the edge of the blade.
4. The blade of a steel cutter is rotating at a speed of 600 rev/min. If the radius of the blade is 7.5 cm, determine the (a) angular speed, (b) tangential speed and (c) radial acceleration of a point at the edge of the blade.
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
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 3OQ
Related questions
Question
answer 4
![1. A flywheel starts from rest until it reaches a constant angular acceleration of 5 rad/s' after 3.0 s. Calculate (a) the
angular speed and (b) the angular displacement (in radians) at this time.
2. Rolando is driving a car on a circular track of radius 200 m. If his car moves at a constant linear speed of 50.0 m/s,
calculate (a) its angular speed and (b) the magnitude of its acceleration.
3. A sphere of mass 5.0 kg rolls without slipping on a floor. Suppose its center of mass is moving at 15.0 m/s, calculate
the (a) translational kinetic energy and (b) rotational kinetic energy about its center of mass.
4. The blade of a steel cutter is rotating at a speed of 600 rev/min. If the radius of the blade is 7.5 cm, determine the (a)
angular speed, (b) tangential speed and (c) radial acceleration of a point at the edge of the blade.
5. The engine of an airplane drives a propeller with 2.25 m in length and a mass of 90 kg. If the engine delivers a torque
of 100 N-m, determine the time it takes the propeller to reach 300 rev/min on start-up.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F84131fa0-46d3-4711-a016-108f502d76ec%2F83a8ac49-93be-41b5-8db9-7448052ef8cd%2Fqmttzvv_processed.png&w=3840&q=75)
Transcribed Image Text:1. A flywheel starts from rest until it reaches a constant angular acceleration of 5 rad/s' after 3.0 s. Calculate (a) the
angular speed and (b) the angular displacement (in radians) at this time.
2. Rolando is driving a car on a circular track of radius 200 m. If his car moves at a constant linear speed of 50.0 m/s,
calculate (a) its angular speed and (b) the magnitude of its acceleration.
3. A sphere of mass 5.0 kg rolls without slipping on a floor. Suppose its center of mass is moving at 15.0 m/s, calculate
the (a) translational kinetic energy and (b) rotational kinetic energy about its center of mass.
4. The blade of a steel cutter is rotating at a speed of 600 rev/min. If the radius of the blade is 7.5 cm, determine the (a)
angular speed, (b) tangential speed and (c) radial acceleration of a point at the edge of the blade.
5. The engine of an airplane drives a propeller with 2.25 m in length and a mass of 90 kg. If the engine delivers a torque
of 100 N-m, determine the time it takes the propeller to reach 300 rev/min on start-up.
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