   # A simple pendulum has mass 1.20 kg and length 0.700 m. (a) What is the period of the pendulum near the surface of Earth? (b) If the same mass is attached to a spring, what spring constant would result in the period of motion found in part (a)? ### College Physics

10th Edition
Raymond A. Serway + 1 other
Publisher: Cengage Learning
ISBN: 9781285737027

#### Solutions

Chapter
Section ### College Physics

10th Edition
Raymond A. Serway + 1 other
Publisher: Cengage Learning
ISBN: 9781285737027
Chapter 13, Problem 65AP
Textbook Problem
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## A simple pendulum has mass 1.20 kg and length 0.700 m. (a) What is the period of the pendulum near the surface of Earth? (b) If the same mass is attached to a spring, what spring constant would result in the period of motion found in part (a)?

(a)

To determine
The period of pendulum near the surface of earth.

### Explanation of Solution

Given info: The mass of the pendulum is 1.20kg . The length of the pendulum is 0.700m .

The period of a simple pendulum is defined as,

T=2πLg

• T is the period of oscillation
• L is the length of the pendulum
• g is the free fall acceleration

Substitute 0.700 m for L and 9.80ms2 for g to find T

b)

To determine
The spring constant of the pendulum.

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