An object starts at position 12 on a horizontal line with a reference point of 0. What is the position of the object if it moves 14
units to the left?
0 -26
0 -2
0 2
0 26

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.