1) At exactly noon an object has a displacement of –30m. At exactly 5 seconds after noon the object has a displacement of –50m. Find the average velocity of the object over the time interval beginning at noon and ending at 5 seconds after noon.
2) At exactly 5pm an object has a displacement of –100m. At exactly 25 seconds after noon the object has a displacement of –25m. Find the average velocity of the object over the time interval beginning at noon and ending at 5 seconds after noon.
3) An object is traveling with a constant velocity. Initially the object is 20m East of the tree. Five seconds after the initial time the object is 10m west of the tree. Find the speed of the object.
4) An object is traveling with a constant velocity. Initially the object is 60m East of the tree. Ten seconds after the initial time the object is 10m west of the tree. Find the Velocity of the object, then find the speed. Are these values the same or different and why?
5) A ball is launched vertically upwards from the ground with a speed of 60 m/s. When will the ball have a speed of 40m/s? (assume the only force on the object is gravity)
6) A rock is launched vertically upwards from the ground with a speed of 100 m/s. When will the ball have a Velocity of 40m/s? When will it have a speed of 40m/s? (assume the only force on the object is gravity, and that upwards is positive while down is negative). Are these values the same or different and why.
7) A cannon ball is fired from the ground at an angle of 45 degrees. The cannon ball leaves the cannon with a speed of 200√2m/s. What is the speed of the ball 10 seconds after the ball is fired? What is the maximum height of the ball? Where will the ball hit the ground? (Assume gravity is the only force on the ball.)
8) A rock is fired from the ground at an angel of 45 degrees. The rock is launched at a speed of 50√2m/s. What is the speed of the ball 2 seconds after it is fired? What is the maximum height of the ball? Where will the ball hit the ground?
9) Bob and sue are standing on ice (assumed to be frictionless). Bob Weighs 500N. They push against each other and Sue acquires an acceleration of magnitude 5m/s^2 while Bob acquires an acceleration of 3m/s^2. Find Sue’s Mass
10) Karl and Nick are standing on ice (assumed to be frictionless). Karl weighs 100N. They push against each other and Nick acquires an acceleration of magnitude 10m/s^2 while Karl acquires an acceleration of 5m/s^2. Find Nicks mass.
11) During a football game Jeff is forced to Kick a field goal. He is 40 meters from the goal post and the goal post is 5 meters high. What are the necessary vertical and horizontal speeds Jeff will need to hit the ball with in order to make the field goal?
12) You decide to drive your car off a vertical ramp at 80mph. Assuming you’re a launched vertically into the air at 80mph and that gravity is the only force acting on your car, how long will your car be in the air? What will be your car’s maximum height?
13) At the end of the semester you decide to drop your physics book off the edge of the grand canyon. The grand canyon is 1 mile deep. How long will it take for you book to hit the bottom of the canyon? How fast will your book be traveling, in miles per hour, just before it hits the ground?


