ITT Technical Institute
Framingham, Massachusetts
Quarter 6 Electronics Physics
Instructor: Paul Burney

Name __________________________________

Instructions:

Please solve the following problems. Credit will be given for work completed so make sure to show it! Some helpful information can be found below. The following equations can be used for the y direction also. Just substitute the x for y.

Motion Formulas	Necessary Problem Information

Projectile Motion Formulas

1. (33 points) In the problem below, the velocity of the boat, v_b, is 15 m/s. The velocity of the current, v_c is 5 m/s. The width of the river is 125 m.
   
   
   1. How long does it take the boat to reach the other side of the river?
      
      
      
      
      
      
      
      
      
      
   2. How far does the boat move horizontally along the river in this time. (What is the horizontal distance from where the boat starts to the large X?)
      
      
      
      
      
      
      
      
      
      
   3. With what total (resultant) speed does the is boat move?
      
      
      
      
      
      
      
      
      
      
2. (33 points) In the figure below, a ball rolls off of a table horizontally with a speed of 3.6 m/s. The table is 1.54 m tall. Use 9.8 m/s² for the acceleration of gravity (g).
   
   1. How long does it take for the ball to reach the ground?
      
      
      
      
      
      
      
      
      
      
   2. How far away from the table (horizontally) does it land?
      
      
      
      
      
      
      
      
      
      
   3. How fast is the ball moving when it hits the ground?
      
      
      
      
      
      
      
      
      
      
3. (33 points) A football punter kicks a ball at an angle of 72° with a speed of 15 m/s.
   
   1. How far down the field does the ball travel?
      
      
      
      
      
      
      
      
      
      
   2. What is the maximum height reached by the ball?
      
      
      
      
      
      
      
      
      
      
   3. How long is the ball in the air?