Answered: 7. A ball attached to a string of…

7. A ball attached to a string of length 0.25 meters is whirled around in a circular path. It experiences a centripetal acceleration of 40 m/s². a. What is the tangential velocity of the ball?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

7. A ball attached to a string of length 0.25 meters is whirled around in a circular path. It
experiences a centripetal acceleration of 40 m/s².
a. What is the tangential velocity of the ball?
b. How long does the ball take to make one complete revolution?

Expert Solution

Step 1

Given data as per the question

$\begin{array}{l} r = 0.25 m \\ {centripetal acceleration, a}_{c} = 40 m / s^{2} \end{array}$

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