5. A ball of mass M is on a horizontal surface with negligible friction. One end of a string is attached to the ball so that it is spun in a horizontal circle of radius R at a tangential speed vo, as shown in Figure 1. A free-body diagram for the ball at an instant in time is shown in Figure 2. The magnitude of the tension force is also indicated in Figure 2. Which of the following equations represents the centripetal acceleration of the ball if its tangential speed is increased to 2v.? vo a. = 2R FNormal a. Figure 1. Top View b. a. = R 2v, FTrension-Mv %3D C. a. = 4vo d. a. = R. Mg Answer is Figure 2

5. A ball of mass M is on a horizontal surface with negligible friction. One end of a string is attached to the ball so that it is spun in a horizontal circle of radius R at a tangential speed vo, as shown in Figure 1. A free-body diagram for the ball at an instant in time is shown in Figure 2. The magnitude of the tension force is also indicated in Figure 2. Which of the following equations represents the centripetal acceleration of the ball if its tangential speed is increased to 2v.? vo a. = 2R FNormal a. Figure 1. Top View b. a. = R 2v, FTrension-Mv %3D C. a. = 4vo d. a. = R. Mg Answer is Figure 2

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

5. A ball of mass M is on a horizontal surface with negligible friction. One
end of a string is attached to the ball so that it is spun in a horizontal circle
of radius R at a tangential speed vo, as shown in Figure 1. A free-body
diagram for the ball at an instant in time is shown in Figure 2. The
magnitude of the tension force is also indicated in Figure 2. Which of the
following equations represents the centripetal acceleration of the ball if
its tangential speed is increased to 2v.?
a. a, =
2R
FNormal
Mv
Figure 1.
Top View
b. a, =
R
FTension
2vo
C. a. =
%3D
4vo
d.
ac
Mg
R
Answer is
Figure 2

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