a. An object is revolving in a vertical circle. Draw a free-body diagram and apply the dynamics of circular motion to write equations at i. at the top of the circle ii. at the bottom of the circle b. The ball is swung in the horizontal direction. What force must a person exert on a string attached to the 0.5 kg ball to make it revolve in a horizontal circle of radius 3.0 m. The ball makes 120 rpm. c. The 0.5 kg ball is swung in a vertical direction on the end of s 3.0 m long cord of negligible mass. i. what is the minimum speed at the top of the circle so that the ball continues to move in a circle, and ii. what is the tension in the string if the speed at the bottom is triple the speed at the top.

a. An object is revolving in a vertical circle. Draw a free-body diagram and apply the dynamics of circular motion to write equations at i. at the top of the circle ii. at the bottom of the circle b. The ball is swung in the horizontal direction. What force must a person exert on a string attached to the 0.5 kg ball to make it revolve in a horizontal circle of radius 3.0 m. The ball makes 120 rpm. c. The 0.5 kg ball is swung in a vertical direction on the end of s 3.0 m long cord of negligible mass. i. what is the minimum speed at the top of the circle so that the ball continues to move in a circle, and ii. what is the tension in the string if the speed at the bottom is triple the speed at the top.

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)...

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Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

**Q. 1**

**a.** An object is revolving in a vertical circle. Draw a free-body diagram and apply the dynamics of circular motion to write equations at:

**i.** at the top of the circle

**ii.** at the bottom of the circle

**b.** The ball is swung in the horizontal direction. What force must a person exert on a string attached to the 0.5 kg ball to make it revolve in a horizontal circle of radius 3.0 m. The ball makes 120 rpm.

**c.** The 0.5 kg ball is swung in a vertical direction on the end of a 3.0 m long cord of negligible mass.

**i.** What is the minimum speed at the top of the circle so that the ball continues to move in a circle, and

**ii.** What is the tension in the string if the speed at the bottom is triple the speed at the top.

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