7) The figure below shows a conical pendulum. It consists of a bob is suspended at the end of a string and describes a horizontal circle at a constant speed of 1.28 m/s. If the length of the string is 1.20 m and it makes an angle of 20° with the vertical, find the acceleration of the bob.

7) The figure below shows a conical pendulum. It consists of a bob is suspended at the end of a string and describes a horizontal circle at a constant speed of 1.28 m/s. If the length of the string is 1.20 m and it makes an angle of 20° with the vertical, find the acceleration of the bob.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 7OQ: A door in a hospital has a pneumatic closer that pulls the door shut such that the doorknob moves...

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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.

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Number 7 show all work

7) The figure below shows a conical pendulum. It consists of a bob is suspended at the end of a
string and describes a horizontal circle at a constant speed of 1.28 m/s. If the length of the
string is 1.20 m and it makes an angle of 20° with the vertical, find the acceleration of the bob.
8) A stone moves in a circle of radius 60.0 cm and has a centripetal acceleration of 90 m/s². How
long does it take to make 8 revolutions?

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