Q1. Rank the vector combinations on the basis of their angle, measured counter clockwise from the positive x axis. Vectors parallel to the positive x axis have the angle of 0. All angle measures fall between 0 and 360.

Q2. Inside a starship at rest on the earth, the ball rolls off the top of the horizontal table and lands a distance from the foot of table. This starship now lands on the unexplored Planet X. Q3. The commander, Captain Curious, rolls the same ball off the same table with the same initial speed as on earth and finds that it lands the distance 2.50 from the foot of table. What is the acceleration because of gravity on Planet X?