2. A group of students conducted a projectile experiment in which they fired a projectile at an unknown angle with varying speed. Students took the following data for projectile range and speed. Determine: a. What kind of graph comes out if initial velocity vs. range is plotted? R(m) Volm/s) 0.2 1.71 0.4 2.42 0.6 2.97 0.8 3.43 3.83 1.2 4.2 1.4 4.53 1.6 4.84 1.8 5.14 2 5.42 b. What is the linearization method for this graph? c. Make the linearized graph and determine its slope with its units. d. Determine the initial angle at which the projectile was launched.

Using graphical methods derive the kinematic equation:Snth= u+a (n-1/2)

1. Find the following for path A in Figure 3.52: (a) the total distance traveled, and (b) the magnitude and direction of the displacement from start to finish. N w -E S Start B- D Figure 3.52 The various lines represent paths taken by different people walking in a city. All blocks are 120 m on a side. 2. Find the following for path B in Figure 3.52: (a) the total distance traveled, and (b) the magnitude and direction of the displacement from start to finish.

4. Swims across Lake Erie are officially sanctioned by the Lake Erie Open Water Swimming Association. Your friend on the swim team wants to swim across the lake. The plan is that your friend will swim to Presque Isle starting at a location at Long Point, Ontario which is 24 miles due north of Presque Isle. You will be navigating a boat with a GPS. Your friend can maintain a speed of 1.80 mph in still water. All during the swim you observe that objects drifting in the water are moving at 0.70 mph to the east due to the current. a. What bearing should you maintain? That is what direction should you point the boat to reach Presque Isle? Give your answer relative to a compass direction (i.e., 30° north of west). Hint, you want your net velocity vector to be straight south. b. How long did it take your friend to swim across Lake Erie? c. What is the addition amount of time that your friend will need to swim compared to if there was no current (assume your friend swims at a constant rate)?

Name: Period: 4. An object is shot 50 m/s at an angle of 70°. How high does it go? A. Use trigonometry to calculate the initial x and y velocities of the object. y-dir. x-dir. Ấy Ax B. Fill in the x and y variables. C. Calculate how high the object rises. 50 m/s 70° I| ||

1. A group of mountain climbers walked 5.7 km north from their camp, then walk 10 km more to the east. (a) What was the total distance walked by the mountain climbers? (b) Determine the total displacement from the starting point. 2. Anna walked 12 km north, 15 km south, and then walk 12 km west. What is the total distance Anna traveled? What is her total displacement? 3. A body is moving at a uniform speed travels a distance of 120 m/s in 10 s. Find its average speed.

A car moved on the x-axis from the origin to the positive direction, then moved to the positive direction and became 12m away, then moved to the negative direction on the x-axis, becoming -3m away. If you know that the total time of the movement is 12 seconds, find the following: 1. The total distance traveled by the car.  2. The total displacement of the vehicle.  3. Standard average left speed. 4. average vector velocity

A photographer in a helicopter ascending vertically at a constant rate of 11.0 m/sm/s accidentally drops a camera out the window when the helicopter is 62.0 mm above the ground.     Part A How long will the camera take to reach the ground? A photographer in a helicopter ascending vertically at a constant rate of 11.0 m/sm/s accidentally drops a camera out the window when the helicopter is 62.0 mm above the ground.   Part A How long will the camera take to reach the ground?

Two cars A and B are moving with constant velocities of 6 m/s and 18.4 km/hr respectively facing each other along the x-axis when they are at 60 m apart. a) Draw motion diagrams for both cars before meeting. b) When will they meet? c) Where will they meet?