LQ1:
1.  Which of the following is closest to your height?
A) 0.02 m  B) 0.2 m   C) 2 m   D) 200 m   E) 2000 m
2.   1 mi is equivalent to 1609 m si 55 mph (miles per hour) is
A) 15 m/s         B) 25 m/s        C) 66 m/s       D) 88 m/s      E) 1500 m/s
55 m/h = 55 * (1609 m/mi) * (1/3600 h/s) =  25 m/s
3.   The angle between A = 25i + 45 j and the positive x axis is
A) 29⁰        B) 61⁰        C) 151⁰          D) 209⁰        E) 241⁰
   so tan^-1(45/25) = 61⁰