Q. 13

Expert-verifiedFound in: Page 415

Book edition
4th

Author(s)
Randall D. Knight

Pages
1240 pages

ISBN
9780133942651

An air-track glider attached to a spring oscillates with a period of . At the glider is left of the equilibrium position and moving to the right at .

a. What is the phase constant?

b. What is the phase at , , , and ?

(a) The phase constant is

(b) The phase at is , at is , at is , at is

Given:

left of equilibrium position

to the right side of the equilibrium position

Equation of wave is given,

We have to search out the Amplitude by divide the above equations,

Substitute the values and at ,

The absolute angle is , and also the displacement is , thus the direction is from to at , where , that the angle is within the third quadratic and is given from by,

Then, , we write within the variety of

By,

To achieve the best possible positive amplitude,

so, the equation is

The angle is,

Substitute,

,

,

,

,

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