6. A small body of mass 3 kg revolves uniformly in a circle on a horizontal frictionless surface attached by a cord 0.2m. The cord is connected to a pin set in the center of the surface. If the body makes 4 revolutions in 2 seconds a) Find the centripetal force. 7. The same object above is now twirled in a vertical circle of radius 0.6 m. If the speed of the object is 6 m/s when the object is at the bottom of the vertical circle a) Find the centripetal acceleration (at the bottom) b) Find the centripetal force for a speed of 5m/s at the top.

6. A small body of mass 3 kg revolves uniformly in a circle on a horizontal frictionless surface attached by a cord 0.2m. The cord is connected to a pin set in the center of the surface. If the body makes 4 revolutions in 2 seconds a) Find the centripetal force. 7. The same object above is now twirled in a vertical circle of radius 0.6 m. If the speed of the object is 6 m/s when the object is at the bottom of the vertical circle a) Find the centripetal acceleration (at the bottom) b) Find the centripetal force for a speed of 5m/s at the top.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 10CQ: A car of mass m follows a truck of mass 2m around a circular turn. Both vehicles move at speed v....

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