QUESTION 17 A 0.1 kg ball rotates at a constant speed of 2 m/s on the end of 1 m long string. The string describes a horizontal circle. What is the centripetal force_ and centripetal acceleration of the object_ ? 7.5 N; 1.2 m/s² 3.9 N; 3 m/s2 0.4 N; 4 m/s2 6 N; 3.2 m/s2 2.5 N; 2.4 m/s2

QUESTION 17 A 0.1 kg ball rotates at a constant speed of 2 m/s on the end of 1 m long string. The string describes a horizontal circle. What is the centripetal force_ and centripetal acceleration of the object_ ? 7.5 N; 1.2 m/s² 3.9 N; 3 m/s2 0.4 N; 4 m/s2 6 N; 3.2 m/s2 2.5 N; 2.4 m/s2

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter6: Uniform Circular Motion And Gravitation

Section: Chapter Questions

Problem 27PE: (a) What is the radius of a bobsled turn banked at 75.0° and taken at 30.0 m/s, assuming it is...

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An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 8.00 rev/s when the length of the chain is 6.600 m. When be increases the length to 0.900 m, he is able to rotate the ball only 6.00 rev/s. (a) Which rate of rotation gives the greater speed for the ball? (b) What is the centripetal acceleration of the ball at 8.00 rev/s? (c) What is the centripetal acceleration at 6.00 rev/s?
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