A rocket of length 5 meters passes an observer on earth. The observer measures the passing rocket to be 3 meters long. What is the velocity of the rocket in the reference frame of the Earth-based observer?

A meter stick, at an angle of 30 degrees with the x-axis, is traveling at 0.6_c_ in the direction of the positive y-axis. To a stationary observer, how long does the meter stick appear to be?