# A rod of length L0 moving with a speed v along the horizontal direction makes an angle

## Question:

(a) Show that the length of the rod as measured by a stationary observer is L = L0 [1 - (v2/c2) cos2 4 0]1/2.

(b) Show that the angle that the rod makes with the x axis is given by tan 4 = μ tan 4 0. These results show that the rod is both contracted and rotated.

(Take the lower end of the rod to be at the origin of the primed coordinate system.)

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**Related Book For**

## Probability & Statistics For Engineers & Scientists

**ISBN:** 9780130415295

7th Edition

**Authors:** Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying