Below are shown the velocity vs. time graphs for three different objects. In this activity you are asked to read and compare information obtained from these graphs. Assume that all of the objects begin their motion at 1 = Os. Object X Object Y Object Z 10 velocity vx (cm/s) 1 2 3 4 5 -1 time t (seconds) velocity v (cm/s) NO N 1 2 3 4 5 timet (seconds) Al. What is the velocity of Object Z at t = 3 seconds? A2. Which object reaches a velocity of 2cm/s first? velocity vx (cm/s) 10 T 1 2 3 4 5 timet (seconds) A3. Which object has the greatest change in speed during the first 2 seconds? A4. (a) Which object reverses direction and starts to return to its original position? (b) When does this occur? A5. Which of the objects are ever at rest and when does it occur? A6. How long does it take Object X to travel 6cm?