College Physics
College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
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Chapter 13, Problem 1MCQ
To determine

Displacement and force direction of the particle from its equilibrium position.

Expert Solution & Answer
Check Mark

Answer to Problem 1MCQ

Option (b).

Explanation of Solution

The force applied to the mass of the object attached to the spring is directly proportional to the displacement of the object. The SHM is always obeys the Hooke’s law.

Write the expression for the Hooke’s law.

  Fs=kx        (I)

Here, Fs is the spring force, k is the spring constant and x is the distance of the object displacement.

The spring force is also called as restoring force. The negative sign indicates the restoring force is opposite the displacement of the object.

Conclusion:

Option (b) is correct. From equation (I), when force applied on the particle in SHM is displaces the object from its equilibrium position in the opposite direction.

Option (a) is incorrect. When force applied on the particle is in the same direction of displacement of the particle increases motion of the particle.

Option (c) is incorrect. When force is perpendicular to the displacement then the mass of the object remains in the same position. There is no motion of the particle.

Option (d) is incorrect. In SHM, force exerted by the spring is always in the opposite direction to its displacement.

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Chapter 13 Solutions

College Physics

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