Answered: 3. A ball of mass M is on a horizontal…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter6: Applications Of Newton’s Laws Of Motion

Section6.6: Centripetal Force

Problem 6.11CE: The following objects are moving in uniform circular motion. Draw a free-body diagram for each...

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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 v_o, 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 2vo ?

3. 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 x, 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 2vo?
FNormal
a. ae
2R
b. а,
Fransion- Mvổ
R
Figure 1.
Top View
с. а
d. as
Mg
Answer is
Figure 2

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