2. A jogger runs east for 2 km, south or 3 km, west for 4 km and north for 3 km.  The entire run takes 1 hour. 

a) Sketch the path taken by the jogger.
b)  Express your answer in km/hour and find the jogger’s average speed for the entire trip. 
c) Where would the jogger be relative to his/her starting point at the end of the jog?
d) Find the jogger’s average velocity for the entire trip.

3. At 200 seconds after liftoff, a high-speed motion picture camera clocks a high-speed rocket moving at 2 km/sec.  At 300 seconds after liftoff, the rocket is moving at 7 km/sec. 
a) How fast is the rocket accelerating into orbit during the elapsed time? 

4. Graph the information on Table A.  Use your graph for the following questions
a) How far did the object travel during the first 3 hours of its journey?
b) What was the average speed of the object between 11 am and 1 pm?
c) How far did the object travel from 10 am to 12 noon?
d) What was the object’s average speed from 8 am to 5 pm?

5. With the equipment provided in the laboratory, measure the time it takes for a ball to roll down a ramp with a stopwatch. Make three measurements of the time to roll down the ramp starting the ball in the same place.  Calculate the average time to roll down the ramp.  Then, start the ball in a different place (higher or lower on the ramp) and measure the time it takes to roll down the ramp from the new height.  Repeat 3 more times for a total of 5 different heights.    Compete the calculations on Table B.

6. Graph the information on Table C.   Use your graph for the following questions.

a) Which object traveled farther in the first 3 hours: Object A or Object B?
b) What was the average speed of Object A between 8 am and 1 pm?
c) What was the average speed of Object B between 8 am and 1 pm?
d) What was Object A’s average speed during the trip?
e) What was Object B’s rate of acceleration during the trip?

7.  With the equipment provided in the laboratory, measure the time it take for a ball to roll down 25 cm of the ramp.  Do this 3 times.  Then measure the time it takes for the ball to roll 50 cm.  Do this 3 times also.  Use your data to complete table D and calculate the acceleration for this segment of the ramp.  Repeat the process rolling the ball 75 cm and finally 100 cm.  Again use the data to complete table D--just as far as calculating the average speed for each distance.  You do not need to calculate the acceleration for the different distances.

8.  What is the force on a 30 kg object accelerating at the rate of 25 meters per second per second?