3. At time t₀a ball is shot upward from the ground with an initial velocity of v₀. (a) When the ball reaches its maximum altitude, what is its velocity?; (b) When the ball reaches its maximum altitude, what is its acceleration?; (c) What is the acceleration of the ball just before it hits the ground? (d) What is the velocity of the ball just before it hits the ground? (e) Sketch position vs time, velocity vs time, acceleration vs time, and speed vs time graphs of the ball over the time interval from launch until landing.

4. On Planet Spiro (where the downward acceleration of gravity = -10.0 [m/s²]), a salami is dropped from the famous Learning Tower of Pizza and falls 5.00 [m] after 1.00 [s] has elapsed. What additional distance does the salami drop in the next second?

(a) 5.00 [m], (b) 10.0 [m], (c) 15.0 [m], (d) 20.0 [m], (e) 25.0 [m]. Explain your answer.

5. A racing car starts from rest and travels in a straight line to reach a final non-zero speed v in a time t. If the acceleration of the car is constant during this time, indicate all of the following statements which are true? (a) The car travels a distance vt. (b) The average speed of the car over this time is v/2. (c) The acceleration of the car is v/t. (d) The velocity of the car is constant. (e) None of these. Explain your answer.

Sketch graphs of position vs time, velocity vs time, and acceleration vs time for the racing car described above.